36257121369 has 32 divisors (see below), whose sum is σ = 61950944000. Its totient is φ = 20528266752.

The previous prime is 36257121349. The next prime is 36257121371. The reversal of 36257121369 is 96312175263.

36257121369 is a `hidden beast` number, since 3 + 6 + 2 + 571 + 2 + 13 + 69 = 666.

It is not a de Polignac number, because 36257121369 - 2¹¹ = 36257119321 is a prime.

It is a super-2 number, since 2×36257121369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36257121319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859384 + ... + 900585.

It is an arithmetic number, because the mean of its divisors is an integer number (1935967000).

Almost surely, 2^36257121369 is an apocalyptic number.

It is an amenable number.

36257121369 is a deficient number, since it is larger than the sum of its proper divisors (25693822631).

36257121369 is a wasteful number, since it uses less digits than its factorization.

36257121369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760094 (or 1760088 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 36257121369 in words is "thirty-six billion, two hundred fifty-seven million, one hundred twenty-one thousand, three hundred sixty-nine".