640114526031 has 8 divisors (see below), whose sum is σ = 857213048880. Its totient is φ = 424879510272.

The previous prime is 640114526017. The next prime is 640114526041. The reversal of 640114526031 is 130625411046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 640114526031 - 2²² = 640110331727 is a prime.

It is a super-2 number, since 2×640114526031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 640114525983 and 640114526001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640114526041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465875970 + ... + 465877343.

It is an arithmetic number, because the mean of its divisors is an integer number (107151631110).

Almost surely, 2^640114526031 is an apocalyptic number.

640114526031 is a deficient number, since it is larger than the sum of its proper divisors (217098522849).

640114526031 is a wasteful number, since it uses less digits than its factorization.

640114526031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931753545.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 640114526031 its reverse (130625411046), we get a palindrome (770739937077).

The spelling of 640114526031 in words is "six hundred forty billion, one hundred fourteen million, five hundred twenty-six thousand, thirty-one".