79979725650240 has 448 divisors, whose sum is σ = 304217119987200. Its totient is φ = 19663828697088.

The previous prime is 79979725650233. The next prime is 79979725650247. The reversal of 79979725650240 is 4205652797997.

79979725650240 is a `hidden beast` number, since 7 + 9 + 9 + 7 + 9 + 72 + 5 + 6 + 502 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (79979725650233) and next prime (79979725650247).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79979725650247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93812124 + ... + 94660836.

It is an arithmetic number, because the mean of its divisors is an integer number (679056071400).

Almost surely, 2^{79979725650240} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79979725650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152108559993600).

79979725650240 is an abundant number, since it is smaller than the sum of its proper divisors (224237394336960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79979725650240 is a wasteful number, since it uses less digits than its factorization.

79979725650240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849591 (or 849575 counting only the distinct ones).

The product of its (nonzero) digits is 600112800, while the sum is 72.

The spelling of 79979725650240 in words is "seventy-nine trillion, nine hundred seventy-nine billion, seven hundred twenty-five million, six hundred fifty thousand, two hundred forty".