1125978675520 has 56 divisors (see below), whose sum is σ = 2773693182600. Its totient is φ = 434860726272.

The previous prime is 1125978675439. The next prime is 1125978675541. The reversal of 1125978675520 is 255768795211.

It can be written as a sum of positive squares in 4 ways, for example, as 112203561024 + 1013775114496 = 334968^2 + 1006864^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60657675 + ... + 60676234.

Almost surely, 2^{1125978675520} is an apocalyptic number.

1125978675520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125978675520 is an abundant number, since it is smaller than the sum of its proper divisors (1647714507080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125978675520 is a wasteful number, since it uses less digits than its factorization.

1125978675520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121333955 (or 121333945 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 58.

The spelling of 1125978675520 in words is "one trillion, one hundred twenty-five billion, nine hundred seventy-eight million, six hundred seventy-five thousand, five hundred twenty".