18470425545 has 240 divisors, whose sum is σ = 39797345280. Its totient is φ = 8139605760.

The previous prime is 18470425541. The next prime is 18470425607. The reversal of 18470425545 is 54552407481.

18470425545 is a `hidden beast` number, since 1 + 84 + 7 + 0 + 4 + 25 + 545 = 666.

It is not a de Polignac number, because 18470425545 - 2² = 18470425541 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18470425545.

It is not an unprimeable number, because it can be changed into a prime (18470425541) 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 239 ways as a sum of consecutive naturals, for example, 50327952 + ... + 50328318.

It is an arithmetic number, because the mean of its divisors is an integer number (165822272).

Almost surely, 2^18470425545 is an apocalyptic number.

18470425545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18470425545 is an abundant number, since it is smaller than the sum of its proper divisors (21326919735).

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

18470425545 is a wasteful number, since it uses less digits than its factorization.

18470425545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 45.

The spelling of 18470425545 in words is "eighteen billion, four hundred seventy million, four hundred twenty-five thousand, five hundred forty-five".