188126821004 has 6 divisors (see below), whose sum is σ = 329221936764. Its totient is φ = 94063410500.

The previous prime is 188126820983. The next prime is 188126821019. The reversal of 188126821004 is 400128621881.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23515852622 + ... + 23515852629.

It is an arithmetic number, because the mean of its divisors is an integer number (54870322794).

Almost surely, 2^188126821004 is an apocalyptic number.

It is an amenable number.

188126821004 is a deficient number, since it is larger than the sum of its proper divisors (141095115760).

188126821004 is a wasteful number, since it uses less digits than its factorization.

188126821004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47031705255 (or 47031705253 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The spelling of 188126821004 in words is "one hundred eighty-eight billion, one hundred twenty-six million, eight hundred twenty-one thousand, four".