79902748225440 has 288 divisors, whose sum is σ = 329951349262080. Its totient is φ = 17189162606592.

The previous prime is 79902748225427. The next prime is 79902748225483. The reversal of 79902748225440 is 4452284720997.

It is a happy number.

79902748225440 is a `hidden beast` number, since 7 + 9 + 9 + 0 + 2 + 7 + 4 + 82 + 2 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232971580 + ... + 233314299.

It is an arithmetic number, because the mean of its divisors is an integer number (1145664407160).

Almost surely, 2^{79902748225440} is an apocalyptic number.

79902748225440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79902748225440 is an abundant number, since it is smaller than the sum of its proper divisors (250048601036640).

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

79902748225440 is a wasteful number, since it uses less digits than its factorization.

79902748225440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466285924 (or 466285913 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 79902748225440 in words is "seventy-nine trillion, nine hundred two billion, seven hundred forty-eight million, two hundred twenty-five thousand, four hundred forty".