188757688145 has 16 divisors (see below), whose sum is σ = 244801125072. Its totient is φ = 138894228480.

The previous prime is 188757688139. The next prime is 188757688153. The reversal of 188757688145 is 541886757881.

It can be written as a sum of positive squares in 8 ways, for example, as 31212995584 + 157544692561 = 176672^2 + 396919^2 .

It is not a de Polignac number, because 188757688145 - 2⁴ = 188757688129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5148932 + ... + 5185461.

It is an arithmetic number, because the mean of its divisors is an integer number (15300070317).

Almost surely, 2^188757688145 is an apocalyptic number.

It is an amenable number.

188757688145 is a deficient number, since it is larger than the sum of its proper divisors (56043436927).

188757688145 is a wasteful number, since it uses less digits than its factorization.

188757688145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334692.

The product of its digits is 120422400, while the sum is 68.

The spelling of 188757688145 in words is "one hundred eighty-eight billion, seven hundred fifty-seven million, six hundred eighty-eight thousand, one hundred forty-five".