18800570880 has 1280 divisors, whose sum is σ = 85244544000. Its totient is φ = 3901685760.

The previous prime is 18800570807. The next prime is 18800570911. The reversal of 18800570880 is 8807500881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a super-2 number, since 2×18800570880² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 308206050 + ... + 308206110.

It is an arithmetic number, because the mean of its divisors is an integer number (66597300).

Almost surely, 2^18800570880 is an apocalyptic number.

18800570880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18800570880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42622272000).

18800570880 is an abundant number, since it is smaller than the sum of its proper divisors (66443973120).

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

18800570880 is an equidigital number, since it uses as much as digits as its factorization.

18800570880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The spelling of 18800570880 in words is "eighteen billion, eight hundred million, five hundred seventy thousand, eight hundred eighty".