36586471993 has 2 divisors, whose sum is σ = 36586471994. Its totient is φ = 36586471992.

The previous prime is 36586471973. The next prime is 36586472003. The reversal of 36586471993 is 39917468563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28107193104 + 8479278889 = 167652^2 + 92083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36586471993 is a prime.

It is not a weakly prime, because it can be changed into another prime (36586471973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18293235996 + 18293235997.

It is an arithmetic number, because the mean of its divisors is an integer number (18293235997).

Almost surely, 2^36586471993 is an apocalyptic number.

It is an amenable number.

36586471993 is a deficient number, since it is larger than the sum of its proper divisors (1).

36586471993 is an equidigital number, since it uses as much as digits as its factorization.

36586471993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 61.

The spelling of 36586471993 in words is "thirty-six billion, five hundred eighty-six million, four hundred seventy-one thousand, nine hundred ninety-three".