40000651512 has 32 divisors (see below), whose sum is σ = 105264873600. Its totient is φ = 12631784544.

The previous prime is 40000651489. The next prime is 40000651529. The reversal of 40000651512 is 21515600004.

It is a super-2 number, since 2×40000651512² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 43859908 + ... + 43860819.

It is an arithmetic number, because the mean of its divisors is an integer number (3289527300).

Almost surely, 2^40000651512 is an apocalyptic number.

It is an amenable number.

40000651512 is an abundant number, since it is smaller than the sum of its proper divisors (65264222088).

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

40000651512 is a wasteful number, since it uses less digits than its factorization.

40000651512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87720755 (or 87720751 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 40000651512 in words is "forty billion, six hundred fifty-one thousand, five hundred twelve".