188842950538 has 16 divisors (see below), whose sum is σ = 309038615424. Its totient is φ = 85831349760.

The previous prime is 188842950529. The next prime is 188842950547. The reversal of 188842950538 is 835059248881.

It is an interprime number because it is at equal distance from previous prime (188842950529) and next prime (188842950547).

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, 7095 + ... + 614602.

It is an arithmetic number, because the mean of its divisors is an integer number (19314913464).

Almost surely, 2^188842950538 is an apocalyptic number.

188842950538 is a deficient number, since it is larger than the sum of its proper divisors (120195664886).

188842950538 is a wasteful number, since it uses less digits than its factorization.

188842950538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635517.

The product of its (nonzero) digits is 22118400, while the sum is 61.

The spelling of 188842950538 in words is "one hundred eighty-eight billion, eight hundred forty-two million, nine hundred fifty thousand, five hundred thirty-eight".