18425634480 has 120 divisors (see below), whose sum is σ = 67504853520. Its totient is φ = 4466818560.

The previous prime is 18425634463. The next prime is 18425634529. The reversal of 18425634480 is 8443652481.

18425634480 is a `hidden beast` number, since 1 + 8 + 4 + 2 + 5 + 634 + 4 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1155315 + ... + 1171154.

It is an arithmetic number, because the mean of its divisors is an integer number (562540446).

Almost surely, 2^18425634480 is an apocalyptic number.

18425634480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18425634480 is an abundant number, since it is smaller than the sum of its proper divisors (49079219040).

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

18425634480 is a wasteful number, since it uses less digits than its factorization.

18425634480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326499 (or 2326490 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 18425634480 in words is "eighteen billion, four hundred twenty-five million, six hundred thirty-four thousand, four hundred eighty".