1198433945631 has 32 divisors (see below), whose sum is σ = 1728673228800. Its totient is φ = 734143334400.

The previous prime is 1198433945627. The next prime is 1198433945651. The reversal of 1198433945631 is 1365493348911.

It is not a de Polignac number, because 1198433945631 - 2² = 1198433945627 is a prime.

It is a super-2 number, since 2×1198433945631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198433945651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7467846 + ... + 7626636.

It is an arithmetic number, because the mean of its divisors is an integer number (54021038400).

Almost surely, 2^{1198433945631} is an apocalyptic number.

1198433945631 is a deficient number, since it is larger than the sum of its proper divisors (530239283169).

1198433945631 is a wasteful number, since it uses less digits than its factorization.

1198433945631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159687.

The product of its digits is 8398080, while the sum is 57.

The spelling of 1198433945631 in words is "one trillion, one hundred ninety-eight billion, four hundred thirty-three million, nine hundred forty-five thousand, six hundred thirty-one".