36865294518457 has 2 divisors, whose sum is σ = 36865294518458. Its totient is φ = 36865294518456.

The previous prime is 36865294518421. The next prime is 36865294518541. The reversal of 36865294518457 is 75481549256863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34322596385401 + 2542698133056 = 5858549^2 + 1594584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36865294518457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36865294518457.

It is not a weakly prime, because it can be changed into another prime (36865294518757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18432647259228 + 18432647259229.

It is an arithmetic number, because the mean of its divisors is an integer number (18432647259229).

Almost surely, 2^{36865294518457} is an apocalyptic number.

It is an amenable number.

36865294518457 is a deficient number, since it is larger than the sum of its proper divisors (1).

36865294518457 is an equidigital number, since it uses as much as digits as its factorization.

36865294518457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824000, while the sum is 73.

The spelling of 36865294518457 in words is "thirty-six trillion, eight hundred sixty-five billion, two hundred ninety-four million, five hundred eighteen thousand, four hundred fifty-seven".