71062500042 has 32 divisors (see below), whose sum is σ = 161276601600. Its totient is φ = 23183509824.

The previous prime is 71062500007. The next prime is 71062500097. The reversal of 71062500042 is 24000526017.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 71062499979 and 71062500015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13997167 + ... + 14002242.

It is an arithmetic number, because the mean of its divisors is an integer number (5039893800).

Almost surely, 2^71062500042 is an apocalyptic number.

71062500042 is an abundant number, since it is smaller than the sum of its proper divisors (90214101558).

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

71062500042 is a wasteful number, since it uses less digits than its factorization.

71062500042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27999467 (or 27999461 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 71062500042 in words is "seventy-one billion, sixty-two million, five hundred thousand, forty-two".