505191391232 has 56 divisors (see below), whose sum is σ = 1102168684152. Its totient is φ = 229632409600.

The previous prime is 505191391219. The next prime is 505191391249. The reversal of 505191391232 is 232193191505.

It is a self number, because there is not a number n which added to its sum of digits gives 505191391232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713019 + ... + 2893242.

Almost surely, 2^505191391232 is an apocalyptic number.

It is an amenable number.

505191391232 is an abundant number, since it is smaller than the sum of its proper divisors (596977292920).

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

505191391232 is an equidigital number, since it uses as much as digits as its factorization.

505191391232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606298 (or 5606274 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 41.

The spelling of 505191391232 in words is "five hundred five billion, one hundred ninety-one million, three hundred ninety-one thousand, two hundred thirty-two".