40126165431 has 16 divisors (see below), whose sum is σ = 58576050048. Its totient is φ = 24231088800.

The previous prime is 40126165381. The next prime is 40126165459. The reversal of 40126165431 is 13456162104.

It is not a de Polignac number, because 40126165431 - 2⁶ = 40126165367 is a prime.

It is a super-2 number, since 2×40126165431² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 40126165392 and 40126165401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40126165481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185705 + ... + 2203986.

It is an arithmetic number, because the mean of its divisors is an integer number (3661003128).

Almost surely, 2^40126165431 is an apocalyptic number.

40126165431 is a deficient number, since it is larger than the sum of its proper divisors (18449884617).

40126165431 is a wasteful number, since it uses less digits than its factorization.

40126165431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389982.

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

The spelling of 40126165431 in words is "forty billion, one hundred twenty-six million, one hundred sixty-five thousand, four hundred thirty-one".