813860229680 has 20 divisors (see below), whose sum is σ = 1892225034192. Its totient is φ = 325544091840.

The previous prime is 813860229673. The next prime is 813860229691. The reversal of 813860229680 is 86922068318.

It is a tau number, because it is divible by the number of its divisors (20).

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, 5086626356 + ... + 5086626515.

Almost surely, 2^813860229680 is an apocalyptic number.

813860229680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

813860229680 is an abundant number, since it is smaller than the sum of its proper divisors (1078364804512).

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

813860229680 is a wasteful number, since it uses less digits than its factorization.

813860229680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173252884 (or 10173252878 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 813860229680 in words is "eight hundred thirteen billion, eight hundred sixty million, two hundred twenty-nine thousand, six hundred eighty".