18881190346672 has 40 divisors (see below), whose sum is σ = 36819849347072. Its totient is φ = 9379308556800.

The previous prime is 18881190346639. The next prime is 18881190346703. The reversal of 18881190346672 is 27664309118881.

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, 20116972 + ... + 21034612.

Almost surely, 2^{18881190346672} is an apocalyptic number.

It is an amenable number.

18881190346672 is a deficient number, since it is larger than the sum of its proper divisors (17938659000400).

18881190346672 is a wasteful number, since it uses less digits than its factorization.

18881190346672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925997 (or 925991 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 18881190346672 in words is "eighteen trillion, eight hundred eighty-one billion, one hundred ninety million, three hundred forty-six thousand, six hundred seventy-two".