40107765625 has 14 divisors (see below), whose sum is σ = 50134084838. Its totient is φ = 32086200000.

The previous prime is 40107765611. The next prime is 40107765637. The reversal of 40107765625 is 52656770104.

It can be written as a sum of positive squares in 7 ways, for example, as 40058821609 + 48944016 = 200147^2 + 6996^2 .

It is not a de Polignac number, because 40107765625 - 2³¹ = 37960281977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1267824 + ... + 1299073.

Almost surely, 2^40107765625 is an apocalyptic number.

It is an amenable number.

40107765625 is a deficient number, since it is larger than the sum of its proper divisors (10026319213).

40107765625 is an frugal number, since it uses more digits than its factorization.

40107765625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566927 (or 2566902 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 40107765625 in words is "forty billion, one hundred seven million, seven hundred sixty-five thousand, six hundred twenty-five".