18475783464 has 256 divisors, whose sum is σ = 52949894400. Its totient is φ = 5336727552.

The previous prime is 18475783427. The next prime is 18475783477. The reversal of 18475783464 is 46438757481.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79295092 + ... + 79295324.

It is an arithmetic number, because the mean of its divisors is an integer number (206835525).

Almost surely, 2^18475783464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18475783464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26474947200).

18475783464 is an abundant number, since it is smaller than the sum of its proper divisors (34474110936).

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

18475783464 is a wasteful number, since it uses less digits than its factorization.

18475783464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 520 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 57.

The spelling of 18475783464 in words is "eighteen billion, four hundred seventy-five million, seven hundred eighty-three thousand, four hundred sixty-four".