18493247607 has 16 divisors (see below), whose sum is σ = 25368526080. Its totient is φ = 11978442432.

The previous prime is 18493247593. The next prime is 18493247627. The reversal of 18493247607 is 70674239481.

It is not a de Polignac number, because 18493247607 - 2¹⁸ = 18492985463 is a prime.

It is a super-2 number, since 2×18493247607² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18493247607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18493247627) 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, 615507 + ... + 644852.

It is an arithmetic number, because the mean of its divisors is an integer number (1585532880).

Almost surely, 2^18493247607 is an apocalyptic number.

18493247607 is a deficient number, since it is larger than the sum of its proper divisors (6875278473).

18493247607 is a wasteful number, since it uses less digits than its factorization.

18493247607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260502.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 18493247607 in words is "eighteen billion, four hundred ninety-three million, two hundred forty-seven thousand, six hundred seven".