18401225039 has 8 divisors (see below), whose sum is σ = 18456271680. Its totient is φ = 18346209696.

The previous prime is 18401224991. The next prime is 18401225041. The reversal of 18401225039 is 93052210481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18401225039 - 2⁸ = 18401224783 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 (18401225839) 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, 1724282 + ... + 1734920.

It is an arithmetic number, because the mean of its divisors is an integer number (2307033960).

Almost surely, 2^18401225039 is an apocalyptic number.

18401225039 is a deficient number, since it is larger than the sum of its proper divisors (55046641).

18401225039 is a wasteful number, since it uses less digits than its factorization.

18401225039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15649.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 18401225039 in words is "eighteen billion, four hundred one million, two hundred twenty-five thousand, thirty-nine".