188950081537 has 12 divisors (see below), whose sum is σ = 227378354580. Its totient is φ = 156372480096.

The previous prime is 188950081511. The next prime is 188950081571. The reversal of 188950081537 is 735180059881.

It is a happy number.

188950081537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62159963761 + 126790117776 = 249319^2 + 356076^2 .

It is not a de Polignac number, because 188950081537 - 2¹⁵ = 188950048769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188950085537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66483478 + ... + 66486319.

It is an arithmetic number, because the mean of its divisors is an integer number (18948196215).

Almost surely, 2^188950081537 is an apocalyptic number.

It is an amenable number.

188950081537 is a deficient number, since it is larger than the sum of its proper divisors (38428273043).

188950081537 is a wasteful number, since it uses less digits than its factorization.

188950081537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132969840 (or 132969833 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 55.

The spelling of 188950081537 in words is "one hundred eighty-eight billion, nine hundred fifty million, eighty-one thousand, five hundred thirty-seven".