18812489245 has 16 divisors (see below), whose sum is σ = 25698010752. Its totient is φ = 13086948160.

The previous prime is 18812489173. The next prime is 18812489249. The reversal of 18812489245 is 54298421881.

It is not a de Polignac number, because 18812489245 - 2⁷ = 18812489117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18812489192 and 18812489201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18812489249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7434502 + ... + 7437031.

It is an arithmetic number, because the mean of its divisors is an integer number (1606125672).

Almost surely, 2^18812489245 is an apocalyptic number.

It is an amenable number.

18812489245 is a deficient number, since it is larger than the sum of its proper divisors (6885521507).

18812489245 is a wasteful number, since it uses less digits than its factorization.

18812489245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14871572.

The product of its digits is 1474560, while the sum is 52.

The spelling of 18812489245 in words is "eighteen billion, eight hundred twelve million, four hundred eighty-nine thousand, two hundred forty-five".