40012406601672 has 64 divisors (see below), whose sum is σ = 100768165888320. Its totient is φ = 13239195803648.

The previous prime is 40012406601659. The next prime is 40012406601731. The reversal of 40012406601672 is 27610660421004.

It is a self number, because there is not a number n which added to its sum of digits gives 40012406601672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47777083 + ... + 48607349.

It is an arithmetic number, because the mean of its divisors is an integer number (1574502592005).

Almost surely, 2^{40012406601672} is an apocalyptic number.

It is an amenable number.

40012406601672 is an abundant number, since it is smaller than the sum of its proper divisors (60755759286648).

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

40012406601672 is a wasteful number, since it uses less digits than its factorization.

40012406601672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845070 (or 845066 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 40012406601672 in words is "forty trillion, twelve billion, four hundred six million, six hundred one thousand, six hundred seventy-two".