79698208343040 has 528 divisors, whose sum is σ = 320951805183360. Its totient is φ = 17907970867200.

The previous prime is 79698208342903. The next prime is 79698208343053. The reversal of 79698208343040 is 4034380289697.

79698208343040 is a `hidden beast` number, since 7 + 9 + 6 + 9 + 82 + 0 + 83 + 430 + 40 = 666.

It is a super-2 number, since 2×79698208343040² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16937140 + ... + 21124940.

Almost surely, 2^{79698208343040} is an apocalyptic number.

79698208343040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79698208343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160475902591680).

79698208343040 is an abundant number, since it is smaller than the sum of its proper divisors (241253596840320).

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

79698208343040 is a wasteful number, since it uses less digits than its factorization.

79698208343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187898 (or 4187877 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 79698208343040 in words is "seventy-nine trillion, six hundred ninety-eight billion, two hundred eight million, three hundred forty-three thousand, forty".