40718988540 has 144 divisors (see below), whose sum is σ = 137663154720. Its totient is φ = 9681776640.

The previous prime is 40718988493. The next prime is 40718988599. The reversal of 40718988540 is 4588981704.

40718988540 is a `hidden beast` number, since 4 + 0 + 7 + 1 + 8 + 98 + 8 + 540 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292041 + ... + 408320.

It is an arithmetic number, because the mean of its divisors is an integer number (955994130).

Almost surely, 2^40718988540 is an apocalyptic number.

It is an amenable number.

40718988540 is an abundant number, since it is smaller than the sum of its proper divisors (96944166180).

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

40718988540 is a wasteful number, since it uses less digits than its factorization.

40718988540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700412 (or 700407 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 40718988540 in words is "forty billion, seven hundred eighteen million, nine hundred eighty-eight thousand, five hundred forty".