18032674725 has 36 divisors (see below), whose sum is σ = 34783031556. Its totient is φ = 8877623040.

The previous prime is 18032674721. The next prime is 18032674729. The reversal of 18032674725 is 52747623081.

It is an interprime number because it is at equal distance from previous prime (18032674721) and next prime (18032674729).

It can be written as a sum of positive squares in 6 ways, for example, as 125417601 + 17907257124 = 11199^2 + 133818^2 .

It is not a de Polignac number, because 18032674725 - 2² = 18032674721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18032674721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3079584 + ... + 3085433.

It is an arithmetic number, because the mean of its divisors is an integer number (966195321).

Almost surely, 2^18032674725 is an apocalyptic number.

18032674725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18032674725 is a deficient number, since it is larger than the sum of its proper divisors (16750356831).

18032674725 is a wasteful number, since it uses less digits than its factorization.

18032674725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165046 (or 6165038 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 18032674725 in words is "eighteen billion, thirty-two million, six hundred seventy-four thousand, seven hundred twenty-five".