1131808575072 has 48 divisors (see below), whose sum is σ = 3395425727232. Its totient is φ = 323373878400.

The previous prime is 1131808575019. The next prime is 1131808575097. The reversal of 1131808575072 is 2705758081311.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1131808575072² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 842118804 + ... + 842120147.

It is an arithmetic number, because the mean of its divisors is an integer number (70738035984).

Almost surely, 2^{1131808575072} is an apocalyptic number.

1131808575072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131808575072 is an abundant number, since it is smaller than the sum of its proper divisors (2263617152160).

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

1131808575072 is a wasteful number, since it uses less digits than its factorization.

1131808575072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684238971 (or 1684238963 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 48.

The spelling of 1131808575072 in words is "one trillion, one hundred thirty-one billion, eight hundred eight million, five hundred seventy-five thousand, seventy-two".