40156923025 has 24 divisors (see below), whose sum is σ = 51976923264. Its totient is φ = 30718512000.

The previous prime is 40156923013. The next prime is 40156923047. The reversal of 40156923025 is 52032965104.

It is not a de Polignac number, because 40156923025 - 2²³ = 40148534417 is a prime.

It is a super-2 number, since 2×40156923025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2018125 + ... + 2037925.

It is an arithmetic number, because the mean of its divisors is an integer number (2165705136).

Almost surely, 2^40156923025 is an apocalyptic number.

It is an amenable number.

40156923025 is a deficient number, since it is larger than the sum of its proper divisors (11820000239).

40156923025 is a wasteful number, since it uses less digits than its factorization.

40156923025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23361 (or 23356 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 40156923025 in words is "forty billion, one hundred fifty-six million, nine hundred twenty-three thousand, twenty-five".