718432367540 has 24 divisors (see below), whose sum is σ = 1529957382912. Its totient is φ = 283325440160.

The previous prime is 718432367533. The next prime is 718432367557. The reversal of 718432367540 is 45763234817.

It is a super-2 number, since 2×718432367540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252967724 + ... + 252970563.

It is an arithmetic number, because the mean of its divisors is an integer number (63748224288).

Almost surely, 2^718432367540 is an apocalyptic number.

It is an amenable number.

718432367540 is an abundant number, since it is smaller than the sum of its proper divisors (811525015372).

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

718432367540 is a wasteful number, since it uses less digits than its factorization.

718432367540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505938367 (or 505938365 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 718432367540 in words is "seven hundred eighteen billion, four hundred thirty-two million, three hundred sixty-seven thousand, five hundred forty".