36308921431 has 2 divisors, whose sum is σ = 36308921432. Its totient is φ = 36308921430.

The previous prime is 36308921423. The next prime is 36308921443. The reversal of 36308921431 is 13412980363.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36308921431 - 2³ = 36308921423 is a prime.

It is a super-2 number, since 2×36308921431² (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 (36308931431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18154460715 + 18154460716.

It is an arithmetic number, because the mean of its divisors is an integer number (18154460716).

Almost surely, 2^36308921431 is an apocalyptic number.

36308921431 is a deficient number, since it is larger than the sum of its proper divisors (1).

36308921431 is an equidigital number, since it uses as much as digits as its factorization.

36308921431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 36308921431 in words is "thirty-six billion, three hundred eight million, nine hundred twenty-one thousand, four hundred thirty-one".