18901186983452 has 24 divisors (see below), whose sum is σ = 33952845194352. Its totient is φ = 9201312982400.

The previous prime is 18901186983451. The next prime is 18901186983479. The reversal of 18901186983452 is 25438968110981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18901186983451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117283163 + ... + 117444210.

It is an arithmetic number, because the mean of its divisors is an integer number (1414701883098).

Almost surely, 2^{18901186983452} is an apocalyptic number.

It is an amenable number.

18901186983452 is a deficient number, since it is larger than the sum of its proper divisors (15051658210900).

18901186983452 is a wasteful number, since it uses less digits than its factorization.

18901186983452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234727909 (or 234727907 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 18901186983452 in words is "eighteen trillion, nine hundred one billion, one hundred eighty-six million, nine hundred eighty-three thousand, four hundred fifty-two".