47142599866 has 16 divisors (see below), whose sum is σ = 71992845288. Its totient is φ = 23146272000.

The previous prime is 47142599857. The next prime is 47142599929. The reversal of 47142599866 is 66899524174.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44802072225 + 2340527641 = 211665^2 + 48379^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

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, 248155 + ... + 394798.

Almost surely, 2^47142599866 is an apocalyptic number.

47142599866 is a deficient number, since it is larger than the sum of its proper divisors (24850245422).

47142599866 is a wasteful number, since it uses less digits than its factorization.

47142599866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643617.

The product of its digits is 26127360, while the sum is 61.

The spelling of 47142599866 in words is "forty-seven billion, one hundred forty-two million, five hundred ninety-nine thousand, eight hundred sixty-six".