1131377671872 has 224 divisors, whose sum is σ = 3932266252800. Its totient is φ = 312104088576.

The previous prime is 1131377671867. The next prime is 1131377671913. The reversal of 1131377671872 is 2781767731311.

1131377671872 is a `hidden beast` number, since 1 + 1 + 31 + 377 + 67 + 187 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261858 + ... + 1963425.

Almost surely, 2^{1131377671872} is an apocalyptic number.

1131377671872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131377671872 is an abundant number, since it is smaller than the sum of its proper divisors (2800888580928).

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

1131377671872 is a wasteful number, since it uses less digits than its factorization.

1131377671872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225340 (or 3225324 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 54.

The spelling of 1131377671872 in words is "one trillion, one hundred thirty-one billion, three hundred seventy-seven million, six hundred seventy-one thousand, eight hundred seventy-two".