813435853432 has 8 divisors (see below), whose sum is σ = 1525192225200. Its totient is φ = 406717926712.

The previous prime is 813435853393. The next prime is 813435853487. The reversal of 813435853432 is 234358534318.

813435853432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50839740832 + ... + 50839740847.

It is an arithmetic number, because the mean of its divisors is an integer number (190649028150).

Almost surely, 2^813435853432 is an apocalyptic number.

It is an amenable number.

813435853432 is a deficient number, since it is larger than the sum of its proper divisors (711756371768).

813435853432 is a wasteful number, since it uses less digits than its factorization.

813435853432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101679481685 (or 101679481681 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

The spelling of 813435853432 in words is "eight hundred thirteen billion, four hundred thirty-five million, eight hundred fifty-three thousand, four hundred thirty-two".