79649977292016 has 640 divisors, whose sum is σ = 224636422348800. Its totient is φ = 24267091968000.

The previous prime is 79649977292009. The next prime is 79649977292027. The reversal of 79649977292016 is 61029277994697.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 163552314525 + ... + 163552315011.

It is an arithmetic number, because the mean of its divisors is an integer number (350994409920).

Almost surely, 2^{79649977292016} 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 79649977292016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112318211174400).

79649977292016 is an abundant number, since it is smaller than the sum of its proper divisors (144986445056784).

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

79649977292016 is a wasteful number, since it uses less digits than its factorization.

79649977292016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 1296243648, while the sum is 78.

The spelling of 79649977292016 in words is "seventy-nine trillion, six hundred forty-nine billion, nine hundred seventy-seven million, two hundred ninety-two thousand, sixteen".