816718850136 has 48 divisors (see below), whose sum is σ = 2527939299600. Its totient is φ = 233348242752.

The previous prime is 816718850099. The next prime is 816718850153. The reversal of 816718850136 is 631058817618.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 810236451 + ... + 810237458.

It is an arithmetic number, because the mean of its divisors is an integer number (52665402075).

Almost surely, 2^816718850136 is an apocalyptic number.

It is an amenable number.

816718850136 is an abundant number, since it is smaller than the sum of its proper divisors (1711220449464).

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

816718850136 is a wasteful number, since it uses less digits than its factorization.

816718850136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620473928 (or 1620473921 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 816718850136 in words is "eight hundred sixteen billion, seven hundred eighteen million, eight hundred fifty thousand, one hundred thirty-six".