1365957862564 has 27 divisors (see below), whose sum is σ = 2399372952417. Its totient is φ = 680432242464.

The previous prime is 1365957862559. The next prime is 1365957862579. The reversal of 1365957862564 is 4652687595631.

The square root of 1365957862564 is 1168742.

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

It can be written as a sum of positive squares in only one way, i.e., 8714222500 + 1357243640064 = 93350^2 + 1165008^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1365957862564.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 731631559 + ... + 731633425.

Almost surely, 2^{1365957862564} is an apocalyptic number.

1365957862564 is the 1168742-nd square number.

It is an amenable number.

1365957862564 is a deficient number, since it is larger than the sum of its proper divisors (1033415089853).

1365957862564 is an frugal number, since it uses more digits than its factorization.

1365957862564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 2182 counting only the distinct ones).

The product of its digits is 326592000, while the sum is 67.

The spelling of 1365957862564 in words is "one trillion, three hundred sixty-five billion, nine hundred fifty-seven million, eight hundred sixty-two thousand, five hundred sixty-four".