431155195688 has 48 divisors (see below), whose sum is σ = 945460787040. Its totient is φ = 180470082240.

The previous prime is 431155195643. The next prime is 431155195717. The reversal of 431155195688 is 886591551134.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32214758 + ... + 32228138.

It is an arithmetic number, because the mean of its divisors is an integer number (19697099730).

Almost surely, 2^431155195688 is an apocalyptic number.

It is an amenable number.

431155195688 is an abundant number, since it is smaller than the sum of its proper divisors (514305591352).

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

431155195688 is an frugal number, since it uses more digits than its factorization.

431155195688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26818 (or 13433 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 56.

The spelling of 431155195688 in words is "four hundred thirty-one billion, one hundred fifty-five million, one hundred ninety-five thousand, six hundred eighty-eight".