18425601672 has 32 divisors (see below), whose sum is σ = 46078368480. Its totient is φ = 6139952000.

The previous prime is 18425601643. The next prime is 18425601673. The reversal of 18425601672 is 27610652481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18425601673) 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, 40053 + ... + 196100.

It is an arithmetic number, because the mean of its divisors is an integer number (1439949015).

Almost surely, 2^18425601672 is an apocalyptic number.

18425601672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18425601672 is an abundant number, since it is smaller than the sum of its proper divisors (27652766808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18425601672 is a wasteful number, since it uses less digits than its factorization.

18425601672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239413 (or 239409 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 18425601672 in words is "eighteen billion, four hundred twenty-five million, six hundred one thousand, six hundred seventy-two".