18470008128 has 224 divisors, whose sum is σ = 59394303360. Its totient is φ = 4988067840.

The previous prime is 18470008111. The next prime is 18470008153. The reversal of 18470008128 is 82180007481.

It is a happy number.

It is a super-2 number, since 2×18470008128² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784626 + ... + 807822.

It is an arithmetic number, because the mean of its divisors is an integer number (265153140).

Almost surely, 2^18470008128 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 18470008128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29697151680).

18470008128 is an abundant number, since it is smaller than the sum of its proper divisors (40924295232).

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

18470008128 is a wasteful number, since it uses less digits than its factorization.

18470008128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23265 (or 23255 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The spelling of 18470008128 in words is "eighteen billion, four hundred seventy million, eight thousand, one hundred twenty-eight".