40523737968 has 80 divisors (see below), whose sum is σ = 132935023360. Its totient is φ = 11578209984.

The previous prime is 40523737951. The next prime is 40523738039. The reversal of 40523737968 is 86973732504.

40523737968 is a `hidden beast` number, since 40 + 523 + 7 + 3 + 79 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6697330 + ... + 6703377.

It is an arithmetic number, because the mean of its divisors is an integer number (1661687792).

Almost surely, 2^40523737968 is an apocalyptic number.

40523737968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40523737968 is an abundant number, since it is smaller than the sum of its proper divisors (92411285392).

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

40523737968 is a wasteful number, since it uses less digits than its factorization.

40523737968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400731 (or 13400719 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 40523737968 in words is "forty billion, five hundred twenty-three million, seven hundred thirty-seven thousand, nine hundred sixty-eight".