40265351231 has 8 divisors (see below), whose sum is σ = 47087720064. Its totient is φ = 33710526360.

The previous prime is 40265351227. The next prime is 40265351239. The reversal of 40265351231 is 13215356204.

It is a happy number.

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

It is not a de Polignac number, because 40265351231 - 2² = 40265351227 is a prime.

It is a super-2 number, since 2×40265351231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40265351239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66885665 + ... + 66886266.

It is an arithmetic number, because the mean of its divisors is an integer number (5885965008).

Almost surely, 2^40265351231 is an apocalyptic number.

40265351231 is a deficient number, since it is larger than the sum of its proper divisors (6822368833).

40265351231 is a wasteful number, since it uses less digits than its factorization.

40265351231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133771981.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 40265351231 in words is "forty billion, two hundred sixty-five million, three hundred fifty-one thousand, two hundred thirty-one".