523463194920 has 64 divisors (see below), whose sum is σ = 1577247264000. Its totient is φ = 138980613888.

The previous prime is 523463194879. The next prime is 523463194927. The reversal of 523463194920 is 29491364325.

It is a self number, because there is not a number n which added to its sum of digits gives 523463194920.

It is not an unprimeable number, because it can be changed into a prime (523463194927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9496960 + ... + 9551919.

It is an arithmetic number, because the mean of its divisors is an integer number (24644488500).

Almost surely, 2^523463194920 is an apocalyptic number.

It is an amenable number.

523463194920 is an abundant number, since it is smaller than the sum of its proper divisors (1053784069080).

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

523463194920 is a wasteful number, since it uses less digits than its factorization.

523463194920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19049122 (or 19049118 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 523463194920 in words is "five hundred twenty-three billion, four hundred sixty-three million, one hundred ninety-four thousand, nine hundred twenty".