18888590588949 has 12 divisors (see below), whose sum is σ = 27288735544512. Its totient is φ = 12589986431400.

The previous prime is 18888590588939. The next prime is 18888590589109. The reversal of 18888590588949 is 94988509588881.

It is a happy number.

18888590588949 is a `hidden beast` number, since 1 + 8 + 8 + 8 + 8 + 590 + 5 + 8 + 8 + 9 + 4 + 9 = 666.

It is not a de Polignac number, because 18888590588949 - 2⁴³ = 10092497566741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18888590588939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200558187 + ... + 200652344.

It is an arithmetic number, because the mean of its divisors is an integer number (2274061295376).

Almost surely, 2^{18888590588949} is an apocalyptic number.

It is an amenable number.

18888590588949 is a deficient number, since it is larger than the sum of its proper divisors (8400144955563).

18888590588949 is a wasteful number, since it uses less digits than its factorization.

18888590588949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401215768 (or 401215765 counting only the distinct ones).

The product of its (nonzero) digits is 19110297600, while the sum is 90.

The spelling of 18888590588949 in words is "eighteen trillion, eight hundred eighty-eight billion, five hundred ninety million, five hundred eighty-eight thousand, nine hundred forty-nine".