79697940351903 has 16 divisors (see below), whose sum is σ = 118144495752960. Its totient is φ = 53098897380408.

The previous prime is 79697940351881. The next prime is 79697940351923. The reversal of 79697940351903 is 30915304979697.

79697940351903 is a `hidden beast` number, since 7 + 9 + 69 + 7 + 9 + 40 + 3 + 519 + 0 + 3 = 666.

It is not a de Polignac number, because 79697940351903 - 2⁵ = 79697940351871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79697940351923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918368425 + ... + 918455202.

It is an arithmetic number, because the mean of its divisors is an integer number (7384030984560).

Almost surely, 2^{79697940351903} is an apocalyptic number.

79697940351903 is a deficient number, since it is larger than the sum of its proper divisors (38446555401057).

79697940351903 is a wasteful number, since it uses less digits than its factorization.

79697940351903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836825243 (or 1836825237 counting only the distinct ones).

The product of its (nonzero) digits is 347208120, while the sum is 72.

The spelling of 79697940351903 in words is "seventy-nine trillion, six hundred ninety-seven billion, nine hundred forty million, three hundred fifty-one thousand, nine hundred three".