813800677438 has 16 divisors (see below), whose sum is σ = 1468512501120. Its totient is φ = 330415312536.

The previous prime is 813800677429. The next prime is 813800677447. The reversal of 813800677438 is 834776008318.

It is an interprime number because it is at equal distance from previous prime (813800677429) and next prime (813800677447).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529700256 + ... + 1529700787.

It is an arithmetic number, because the mean of its divisors is an integer number (91782031320).

Almost surely, 2^813800677438 is an apocalyptic number.

813800677438 is a deficient number, since it is larger than the sum of its proper divisors (654711823682).

813800677438 is a wasteful number, since it uses less digits than its factorization.

813800677438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059401071.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 813800677438 in words is "eight hundred thirteen billion, eight hundred million, six hundred seventy-seven thousand, four hundred thirty-eight".