36311425921 has 2 divisors, whose sum is σ = 36311425922. Its totient is φ = 36311425920.

The previous prime is 36311425903. The next prime is 36311425933. The reversal of 36311425921 is 12952411363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35067805696 + 1243620225 = 187264^2 + 35265^2 .

It is a cyclic number.

It is not a de Polignac number, because 36311425921 - 2¹⁷ = 36311294849 is a prime.

It is not a weakly prime, because it can be changed into another prime (36311425721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18155712960 + 18155712961.

It is an arithmetic number, because the mean of its divisors is an integer number (18155712961).

Almost surely, 2^36311425921 is an apocalyptic number.

It is an amenable number.

36311425921 is a deficient number, since it is larger than the sum of its proper divisors (1).

36311425921 is an equidigital number, since it uses as much as digits as its factorization.

36311425921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The spelling of 36311425921 in words is "thirty-six billion, three hundred eleven million, four hundred twenty-five thousand, nine hundred twenty-one".