36618938371 has 2 divisors, whose sum is σ = 36618938372. Its totient is φ = 36618938370.

The previous prime is 36618938359. The next prime is 36618938401. The reversal of 36618938371 is 17383981663.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36618938371 is a prime.

It is a super-2 number, since 2×36618938371² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36618938311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18309469185 + 18309469186.

It is an arithmetic number, because the mean of its divisors is an integer number (18309469186).

Almost surely, 2^36618938371 is an apocalyptic number.

36618938371 is a deficient number, since it is larger than the sum of its proper divisors (1).

36618938371 is an equidigital number, since it uses as much as digits as its factorization.

36618938371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 55.

The spelling of 36618938371 in words is "thirty-six billion, six hundred eighteen million, nine hundred thirty-eight thousand, three hundred seventy-one".