8662142856 has 32 divisors (see below), whose sum is σ = 21719636640. Its totient is φ = 2878810368.

The previous prime is 8662142809. The next prime is 8662142887. The reversal of 8662142856 is 6582412668.

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, 527406 + ... + 543581.

It is an arithmetic number, because the mean of its divisors is an integer number (678738645).

Almost surely, 2^8662142856 is an apocalyptic number.

It is an amenable number.

8662142856 is an abundant number, since it is smaller than the sum of its proper divisors (13057493784).

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

8662142856 is a wasteful number, since it uses less digits than its factorization.

8662142856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071333 (or 1071329 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 8662142856 is about 93070.6336929109. The cubic root of 8662142856 is about 2053.7225920769.

The spelling of 8662142856 in words is "eight billion, six hundred sixty-two million, one hundred forty-two thousand, eight hundred fifty-six".