40288919831 has 2 divisors, whose sum is σ = 40288919832. Its totient is φ = 40288919830.

The previous prime is 40288919809. The next prime is 40288919851. The reversal of 40288919831 is 13891988204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40288919831 is a prime.

It is a super-2 number, since 2×40288919831² (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 (40288919851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20144459915 + 20144459916.

It is an arithmetic number, because the mean of its divisors is an integer number (20144459916).

Almost surely, 2^40288919831 is an apocalyptic number.

40288919831 is a deficient number, since it is larger than the sum of its proper divisors (1).

40288919831 is an equidigital number, since it uses as much as digits as its factorization.

40288919831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 53.

The spelling of 40288919831 in words is "forty billion, two hundred eighty-eight million, nine hundred nineteen thousand, eight hundred thirty-one".