36697561739 has 2 divisors, whose sum is σ = 36697561740. Its totient is φ = 36697561738.

The previous prime is 36697561709. The next prime is 36697561759. The reversal of 36697561739 is 93716579663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36697561739 - 2²⁴ = 36680784523 is a prime.

It is a super-2 number, since 2×36697561739² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (36697561709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18348780869 + 18348780870.

It is an arithmetic number, because the mean of its divisors is an integer number (18348780870).

Almost surely, 2^36697561739 is an apocalyptic number.

36697561739 is a deficient number, since it is larger than the sum of its proper divisors (1).

36697561739 is an equidigital number, since it uses as much as digits as its factorization.

36697561739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38578680, while the sum is 62.

The spelling of 36697561739 in words is "thirty-six billion, six hundred ninety-seven million, five hundred sixty-one thousand, seven hundred thirty-nine".