68432491479 has 32 divisors (see below), whose sum is σ = 101688606720. Its totient is φ = 40578789600.

The previous prime is 68432491471. The next prime is 68432491493. The reversal of 68432491479 is 97419423486.

It is not a de Polignac number, because 68432491479 - 2³ = 68432491471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68432491471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7190334 + ... + 7199844.

It is an arithmetic number, because the mean of its divisors is an integer number (3177768960).

Almost surely, 2^68432491479 is an apocalyptic number.

68432491479 is a deficient number, since it is larger than the sum of its proper divisors (33256115241).

68432491479 is a wasteful number, since it uses less digits than its factorization.

68432491479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14211.

The product of its digits is 10450944, while the sum is 57.

The spelling of 68432491479 in words is "sixty-eight billion, four hundred thirty-two million, four hundred ninety-one thousand, four hundred seventy-nine".