71702915042 has 16 divisors (see below), whose sum is σ = 118109081664. Its totient is φ = 32376390000.

The previous prime is 71702915021. The next prime is 71702915101. The reversal of 71702915042 is 24051920717.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71702914987 and 71702915005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10788809 + ... + 10795452.

It is an arithmetic number, because the mean of its divisors is an integer number (7381817604).

Almost surely, 2^71702915042 is an apocalyptic number.

71702915042 is a deficient number, since it is larger than the sum of its proper divisors (46406166622).

71702915042 is a wasteful number, since it uses less digits than its factorization.

71702915042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21584425.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 71702915042 in words is "seventy-one billion, seven hundred two million, nine hundred fifteen thousand, forty-two".