18514546725 has 12 divisors (see below), whose sum is σ = 30610717376. Its totient is φ = 9874424880.

The previous prime is 18514546723. The next prime is 18514546727. The reversal of 18514546725 is 52764541581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18514546723) and next prime (18514546727).

It is not a de Polignac number, because 18514546725 - 2¹ = 18514546723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514546723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123430237 + ... + 123430386.

Almost surely, 2^18514546725 is an apocalyptic number.

18514546725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18514546725 is a deficient number, since it is larger than the sum of its proper divisors (12096170651).

18514546725 is a wasteful number, since it uses less digits than its factorization.

18514546725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246860636 (or 246860631 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The spelling of 18514546725 in words is "eighteen billion, five hundred fourteen million, five hundred forty-six thousand, seven hundred twenty-five".