1163709372872 has 36 divisors (see below), whose sum is σ = 2189054903715. Its totient is φ = 579967534080.

The previous prime is 1163709372841. The next prime is 1163709372907. The reversal of 1163709372872 is 2782739073611.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 1102697408836 + 61011964036 = 1050094^2 + 247006^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=762794.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1760528222 + ... + 1760528882.

Almost surely, 2^{1163709372872} is an apocalyptic number.

It is an amenable number.

1163709372872 is a deficient number, since it is larger than the sum of its proper divisors (1025345530843).

1163709372872 is an frugal number, since it uses more digits than its factorization.

1163709372872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 1163709372872 in words is "one trillion, one hundred sixty-three billion, seven hundred nine million, three hundred seventy-two thousand, eight hundred seventy-two".