36697915489 has 9 divisors (see below), whose sum is σ = 38367455763. Its totient is φ = 35098139472.

The previous prime is 36697915459. The next prime is 36697915519. The reversal of 36697915489 is 98451979663.

The square root of 36697915489 is 191567.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (36697915459) and next prime (36697915519).

It can be written as a sum of positive squares in only one way, i.e., 4513555489 + 32184360000 = 67183^2 + 179400^2 .

It is not a de Polignac number, because 36697915489 - 2⁷ = 36697915361 is a prime.

It is a super-2 number, since 2×36697915489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36697915459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4401877 + ... + 4410205.

Almost surely, 2^36697915489 is an apocalyptic number.

36697915489 is the 191567-th square number.

36697915489 is the 95784-th centered octagonal number.

It is an amenable number.

36697915489 is a deficient number, since it is larger than the sum of its proper divisors (1669540274).

36697915489 is an frugal number, since it uses more digits than its factorization.

36697915489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16704 (or 8352 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 67.

The spelling of 36697915489 in words is "thirty-six billion, six hundred ninety-seven million, nine hundred fifteen thousand, four hundred eighty-nine".