40907765520 has 120 divisors (see below), whose sum is σ = 137419495512. Its totient is φ = 10905753600.

The previous prime is 40907765501. The next prime is 40907765531. The reversal of 40907765520 is 2556770904.

40907765520 is a `hidden beast` number, since 4 + 0 + 90 + 7 + 7 + 6 + 552 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 574273296 + 40333492224 = 23964^2 + 200832^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4229490 + ... + 4239150.

Almost surely, 2^40907765520 is an apocalyptic number.

40907765520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40907765520 is an abundant number, since it is smaller than the sum of its proper divisors (96511729992).

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

40907765520 is a wasteful number, since it uses less digits than its factorization.

40907765520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15561 (or 15552 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 40907765520 in words is "forty billion, nine hundred seven million, seven hundred sixty-five thousand, five hundred twenty".