40031540291 has 2 divisors, whose sum is σ = 40031540292. Its totient is φ = 40031540290.

The previous prime is 40031540221. The next prime is 40031540309. The reversal of 40031540291 is 19204513004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40031540291 - 2³⁴ = 22851671107 is a prime.

It is not a weakly prime, because it can be changed into another prime (40031540221) by changing a digit.

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 as a sum of consecutive naturals, namely, 20015770145 + 20015770146.

It is an arithmetic number, because the mean of its divisors is an integer number (20015770146).

Almost surely, 2^40031540291 is an apocalyptic number.

40031540291 is a deficient number, since it is larger than the sum of its proper divisors (1).

40031540291 is an equidigital number, since it uses as much as digits as its factorization.

40031540291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 40031540291 in words is "forty billion, thirty-one million, five hundred forty thousand, two hundred ninety-one".