1185780575500 has 48 divisors (see below), whose sum is σ = 2589884283168. Its totient is φ = 474286680000.

The previous prime is 1185780575461. The next prime is 1185780575543. The reversal of 1185780575500 is 55750875811.

It is a super-2 number, since 2×1185780575500² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11217895 + ... + 11323105.

It is an arithmetic number, because the mean of its divisors is an integer number (53955922566).

Almost surely, 2^{1185780575500} is an apocalyptic number.

1185780575500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1185780575500 is an abundant number, since it is smaller than the sum of its proper divisors (1404103707668).

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

1185780575500 is a wasteful number, since it uses less digits than its factorization.

1185780575500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127771 (or 127759 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 52.

The spelling of 1185780575500 in words is "one trillion, one hundred eighty-five billion, seven hundred eighty million, five hundred seventy-five thousand, five hundred".