18798796800 has 1008 divisors, whose sum is σ = 81129664512. Its totient is φ = 4069785600.

The previous prime is 18798796789. The next prime is 18798796811. The reversal of 18798796800 is 869789781.

It is an interprime number because it is at equal distance from previous prime (18798796789) and next prime (18798796811).

It is a tau number, because it is divible by the number of its divisors (1008).

It is a super-2 number, since 2×18798796800² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 399974377 + ... + 399974423.

Almost surely, 2^18798796800 is an apocalyptic number.

18798796800 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 18798796800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40564832256).

18798796800 is an abundant number, since it is smaller than the sum of its proper divisors (62330867712).

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

18798796800 is a wasteful number, since it uses less digits than its factorization.

18798796800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 63.

The spelling of 18798796800 in words is "eighteen billion, seven hundred ninety-eight million, seven hundred ninety-six thousand, eight hundred".