40651688264 has 32 divisors (see below), whose sum is σ = 83418603840. Its totient is φ = 18418612800.

The previous prime is 40651688251. The next prime is 40651688269. The reversal of 40651688264 is 46288615604.

It is not an unprimeable number, because it can be changed into a prime (40651688269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715319 + ... + 770054.

It is an arithmetic number, because the mean of its divisors is an integer number (2606831370).

Almost surely, 2^40651688264 is an apocalyptic number.

40651688264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40651688264 is an abundant number, since it is smaller than the sum of its proper divisors (42766915576).

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

40651688264 is a wasteful number, since it uses less digits than its factorization.

40651688264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485701 (or 1485697 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 40651688264 in words is "forty billion, six hundred fifty-one million, six hundred eighty-eight thousand, two hundred sixty-four".