40745657952 has 72 divisors (see below), whose sum is σ = 119866022640. Its totient is φ = 13113542400.

The previous prime is 40745657941. The next prime is 40745657957. The reversal of 40745657952 is 25975654704.

It is a happy number.

40745657952 is a `hidden beast` number, since 4 + 0 + 7 + 4 + 565 + 79 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40745657957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2430924 + ... + 2447627.

It is an arithmetic number, because the mean of its divisors is an integer number (1664805870).

Almost surely, 2^40745657952 is an apocalyptic number.

It is an amenable number.

40745657952 is an abundant number, since it is smaller than the sum of its proper divisors (79120364688).

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

40745657952 is a wasteful number, since it uses less digits than its factorization.

40745657952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878596 (or 4878585 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 40745657952 in words is "forty billion, seven hundred forty-five million, six hundred fifty-seven thousand, nine hundred fifty-two".