40158464772 has 24 divisors (see below), whose sum is σ = 94532318496. Its totient is φ = 13267692928.

The previous prime is 40158464747. The next prime is 40158464803. The reversal of 40158464772 is 27746485104.

It is a super-2 number, since 2×40158464772² (a number of 22 digits) contains 22 as substring.

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, 14806338 + ... + 14809049.

It is an arithmetic number, because the mean of its divisors is an integer number (3938846604).

Almost surely, 2^40158464772 is an apocalyptic number.

It is an amenable number.

40158464772 is an abundant number, since it is smaller than the sum of its proper divisors (54373853724).

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

40158464772 is a wasteful number, since it uses less digits than its factorization.

40158464772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29615507 (or 29615505 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 40158464772 in words is "forty billion, one hundred fifty-eight million, four hundred sixty-four thousand, seven hundred seventy-two".