18649140300 has 540 divisors, whose sum is σ = 74054192520. Its totient is φ = 4036677120.

The previous prime is 18649140283. The next prime is 18649140313. The reversal of 18649140300 is 304194681.

18649140300 is a `hidden beast` number, since 1 + 8 + 649 + 1 + 4 + 0 + 3 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (540).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 7539864 + ... + 7542336.

Almost surely, 2^18649140300 is an apocalyptic number.

18649140300 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 18649140300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37027096260).

18649140300 is an abundant number, since it is smaller than the sum of its proper divisors (55405052220).

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

18649140300 is a wasteful number, since it uses less digits than its factorization.

18649140300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 18649140300 in words is "eighteen billion, six hundred forty-nine million, one hundred forty thousand, three hundred".