71478345524 has 12 divisors (see below), whose sum is σ = 125168182944. Its totient is φ = 35716007544.

The previous prime is 71478345493. The next prime is 71478345551. The reversal of 71478345524 is 42554387417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5784362 + ... + 5796705.

It is an arithmetic number, because the mean of its divisors is an integer number (10430681912).

Almost surely, 2^71478345524 is an apocalyptic number.

It is an amenable number.

71478345524 is a deficient number, since it is larger than the sum of its proper divisors (53689837420).

71478345524 is a wasteful number, since it uses less digits than its factorization.

71478345524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582614 (or 11582612 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 50.

The spelling of 71478345524 in words is "seventy-one billion, four hundred seventy-eight million, three hundred forty-five thousand, five hundred twenty-four".