71879054997 has 16 divisors (see below), whose sum is σ = 97916610560. Its totient is φ = 46890772992.

The previous prime is 71879054981. The next prime is 71879055007. The reversal of 71879054997 is 79945097817.

It is a happy number.

It is not a de Polignac number, because 71879054997 - 2⁴ = 71879054981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71879054927) 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, 1264372 + ... + 1319997.

It is an arithmetic number, because the mean of its divisors is an integer number (6119788160).

Almost surely, 2^71879054997 is an apocalyptic number.

It is an amenable number.

71879054997 is a deficient number, since it is larger than the sum of its proper divisors (26037555563).

71879054997 is a wasteful number, since it uses less digits than its factorization.

71879054997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584572.

The product of its (nonzero) digits is 40007520, while the sum is 66.

The spelling of 71879054997 in words is "seventy-one billion, eight hundred seventy-nine million, fifty-four thousand, nine hundred ninety-seven".