1087780100564 has 12 divisors (see below), whose sum is σ = 1929692096724. Its totient is φ = 536439501504.

The previous prime is 1087780100543. The next prime is 1087780100587. The reversal of 1087780100564 is 4650010877801.

It can be written as a sum of positive squares in 2 ways, for example, as 808740490000 + 279039610564 = 899300^2 + 528242^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862636867 + ... + 1862637450.

It is an arithmetic number, because the mean of its divisors is an integer number (160807674727).

Almost surely, 2^{1087780100564} is an apocalyptic number.

It is an amenable number.

1087780100564 is a deficient number, since it is larger than the sum of its proper divisors (841911996160).

1087780100564 is a wasteful number, since it uses less digits than its factorization.

1087780100564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725274394 (or 3725274392 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 1087780100564 in words is "one trillion, eighty-seven billion, seven hundred eighty million, one hundred thousand, five hundred sixty-four".