718408480538 has 32 divisors (see below), whose sum is σ = 1285916649600. Its totient is φ = 300729119040.

The previous prime is 718408480507. The next prime is 718408480547. The reversal of 718408480538 is 835084804817.

It is a super-2 number, since 2×718408480538² (a number of 25 digits) contains 22 as substring.

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, 12147743 + ... + 12206738.

It is an arithmetic number, because the mean of its divisors is an integer number (40184895300).

Almost surely, 2^718408480538 is an apocalyptic number.

718408480538 is a deficient number, since it is larger than the sum of its proper divisors (567508169062).

718408480538 is a wasteful number, since it uses less digits than its factorization.

718408480538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24354547 (or 24354533 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 718408480538 in words is "seven hundred eighteen billion, four hundred eight million, four hundred eighty thousand, five hundred thirty-eight".