188135629019 has 16 divisors (see below), whose sum is σ = 215841844512. Its totient is φ = 162445367808.

The previous prime is 188135629001. The next prime is 188135629027. The reversal of 188135629019 is 910926531881.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 188135629019 - 2³² = 183840661723 is a prime.

It is a super-2 number, since 2×188135629019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188135629069) 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, 2575304 + ... + 2647349.

It is an arithmetic number, because the mean of its divisors is an integer number (13490115282).

Almost surely, 2^188135629019 is an apocalyptic number.

188135629019 is a deficient number, since it is larger than the sum of its proper divisors (27706215493).

188135629019 is a wasteful number, since it uses less digits than its factorization.

188135629019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222846.

The product of its (nonzero) digits is 933120, while the sum is 53.

The spelling of 188135629019 in words is "one hundred eighty-eight billion, one hundred thirty-five million, six hundred twenty-nine thousand, nineteen".