198431031792 has 40 divisors (see below), whose sum is σ = 585843999616. Its totient is φ = 56694580416.

The previous prime is 198431031787. The next prime is 198431031803. The reversal of 198431031792 is 297130134891.

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, 295283938 + ... + 295284609.

Almost surely, 2^198431031792 is an apocalyptic number.

198431031792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198431031792 is an abundant number, since it is smaller than the sum of its proper divisors (387412967824).

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

198431031792 is a wasteful number, since it uses less digits than its factorization.

198431031792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590568565 (or 590568559 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

It can be divided in two parts, 1984310 and 31792, that added together give a palindrome (2016102).

The spelling of 198431031792 in words is "one hundred ninety-eight billion, four hundred thirty-one million, thirty-one thousand, seven hundred ninety-two".