18887808950492 has 24 divisors (see below), whose sum is σ = 35005569357696. Its totient is φ = 8898474557808.

The previous prime is 18887808950489. The next prime is 18887808950501. The reversal of 18887808950492 is 29405980878881.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1532100338 + ... + 1532112665.

It is an arithmetic number, because the mean of its divisors is an integer number (1458565389904).

Almost surely, 2^{18887808950492} is an apocalyptic number.

It is an amenable number.

18887808950492 is a deficient number, since it is larger than the sum of its proper divisors (16117760407204).

18887808950492 is a wasteful number, since it uses less digits than its factorization.

18887808950492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064213097 (or 3064213095 counting only the distinct ones).

The product of its (nonzero) digits is 743178240, while the sum is 77.

The spelling of 18887808950492 in words is "eighteen trillion, eight hundred eighty-seven billion, eight hundred eight million, nine hundred fifty thousand, four hundred ninety-two".