813710670402 has 64 divisors (see below), whose sum is σ = 1891801267200. Its totient is φ = 228503899200.

The previous prime is 813710670361. The next prime is 813710670427. The reversal of 813710670402 is 204076017318.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13974124 + ... + 14032232.

It is an arithmetic number, because the mean of its divisors is an integer number (29559394800).

Almost surely, 2^813710670402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813710670402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945900633600).

813710670402 is an abundant number, since it is smaller than the sum of its proper divisors (1078090596798).

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

813710670402 is a wasteful number, since it uses less digits than its factorization.

813710670402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63831.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 813710670402 in words is "eight hundred thirteen billion, seven hundred ten million, six hundred seventy thousand, four hundred two".