40640922895 has 4 divisors (see below), whose sum is σ = 48769107480. Its totient is φ = 32512738312.

The previous prime is 40640922809. The next prime is 40640922911. The reversal of 40640922895 is 59822904604.

40640922895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40640922895 - 2²¹ = 40638825743 is a prime.

It is a super-2 number, since 2×40640922895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4064092285 + ... + 4064092294.

It is an arithmetic number, because the mean of its divisors is an integer number (12192276870).

Almost surely, 2^40640922895 is an apocalyptic number.

40640922895 is a deficient number, since it is larger than the sum of its proper divisors (8128184585).

40640922895 is an equidigital number, since it uses as much as digits as its factorization.

40640922895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8128184584.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 40640922895 in words is "forty billion, six hundred forty million, nine hundred twenty-two thousand, eight hundred ninety-five".