1131725288736 has 216 divisors, whose sum is σ = 3964011318540. Its totient is φ = 304329424896.

The previous prime is 1131725288717. The next prime is 1131725288737. The reversal of 1131725288736 is 6378825271311.

1131725288736 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 7 + 2 + 528 + 87 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1109744261136 + 21981027600 = 1053444^2 + 148260^2 .

It is not an unprimeable number, because it can be changed into a prime (1131725288737) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2118801 + ... + 2598608.

Almost surely, 2^{1131725288736} is an apocalyptic number.

1131725288736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1131725288736 is an abundant number, since it is smaller than the sum of its proper divisors (2832286029804).

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

1131725288736 is a wasteful number, since it uses less digits than its factorization.

1131725288736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717456 (or 4717438 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 1131725288736 in words is "one trillion, one hundred thirty-one billion, seven hundred twenty-five million, two hundred eighty-eight thousand, seven hundred thirty-six".