188214900639 has 16 divisors (see below), whose sum is σ = 252258237792. Its totient is φ = 124824240128.

The previous prime is 188214900569. The next prime is 188214900661. The reversal of 188214900639 is 936009412881.

It is a cyclic number.

It is not a de Polignac number, because 188214900639 - 2⁸ = 188214900383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188214900591 and 188214900600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188214900689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6719287 + ... + 6747239.

It is an arithmetic number, because the mean of its divisors is an integer number (15766139862).

Almost surely, 2^188214900639 is an apocalyptic number.

188214900639 is a deficient number, since it is larger than the sum of its proper divisors (64043337153).

188214900639 is a wasteful number, since it uses less digits than its factorization.

188214900639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39546.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 188214900639 in words is "one hundred eighty-eight billion, two hundred fourteen million, nine hundred thousand, six hundred thirty-nine".