36187631497 has 2 divisors, whose sum is σ = 36187631498. Its totient is φ = 36187631496.

The previous prime is 36187631483. The next prime is 36187631507. The reversal of 36187631497 is 79413678163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34043571081 + 2144060416 = 184509^2 + 46304^2 .

It is a cyclic number.

It is not a de Polignac number, because 36187631497 - 2²³ = 36179242889 is a prime.

It is a super-2 number, since 2×36187631497² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36187631407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18093815748 + 18093815749.

It is an arithmetic number, because the mean of its divisors is an integer number (18093815749).

Almost surely, 2^36187631497 is an apocalyptic number.

It is an amenable number.

36187631497 is a deficient number, since it is larger than the sum of its proper divisors (1).

36187631497 is an equidigital number, since it uses as much as digits as its factorization.

36187631497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The spelling of 36187631497 in words is "thirty-six billion, one hundred eighty-seven million, six hundred thirty-one thousand, four hundred ninety-seven".