816870134862 has 48 divisors (see below), whose sum is σ = 1817478673920. Its totient is φ = 265048894656.

The previous prime is 816870134813. The next prime is 816870134891. The reversal of 816870134862 is 268431078618.

816870134862 is a `hidden beast` number, since 81 + 6 + 8 + 70 + 13 + 486 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 816870134799 and 816870134808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3249937 + ... + 3492252.

It is an arithmetic number, because the mean of its divisors is an integer number (37864139040).

Almost surely, 2^816870134862 is an apocalyptic number.

816870134862 is an abundant number, since it is smaller than the sum of its proper divisors (1000608539058).

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

816870134862 is a wasteful number, since it uses less digits than its factorization.

816870134862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742377 (or 6742374 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 816870134862 in words is "eight hundred sixteen billion, eight hundred seventy million, one hundred thirty-four thousand, eight hundred sixty-two".