816027574842 has 24 divisors (see below), whose sum is σ = 1785225378144. Its totient is φ = 269368325064.

The previous prime is 816027574807. The next prime is 816027574853. The reversal of 816027574842 is 248475720618.

816027574842 is a `hidden beast` number, since 8 + 1 + 6 + 0 + 27 + 574 + 8 + 42 = 666.

It is a super-2 number, since 2×816027574842² (a number of 25 digits) contains 22 as substring.

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, 220070308 + ... + 220074015.

It is an arithmetic number, because the mean of its divisors is an integer number (74384390756).

Almost surely, 2^816027574842 is an apocalyptic number.

816027574842 is an abundant number, since it is smaller than the sum of its proper divisors (969197803302).

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

816027574842 is a wasteful number, since it uses less digits than its factorization.

816027574842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440144434 (or 440144431 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 816027574842 in words is "eight hundred sixteen billion, twenty-seven million, five hundred seventy-four thousand, eight hundred forty-two".