40106965831 has 2 divisors, whose sum is σ = 40106965832. Its totient is φ = 40106965830.

The previous prime is 40106965807. The next prime is 40106965889. The reversal of 40106965831 is 13856960104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40106965831 - 2⁹ = 40106965319 is a prime.

It is a super-2 number, since 2×40106965831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40106965331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053482915 + 20053482916.

It is an arithmetic number, because the mean of its divisors is an integer number (20053482916).

Almost surely, 2^40106965831 is an apocalyptic number.

40106965831 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106965831 is an equidigital number, since it uses as much as digits as its factorization.

40106965831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 40106965831 in words is "forty billion, one hundred six million, nine hundred sixty-five thousand, eight hundred thirty-one".