299923928478720 has 5280 divisors, whose sum is σ = 1423817488380672. Its totient is φ = 58772064043008.

The previous prime is 299923928478701. The next prime is 299923928478751. The reversal of 299923928478720 is 27874829329992.

299923928478720 is a `hidden beast` number, since 2 + 9 + 9 + 9 + 239 + 284 + 7 + 87 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 299923928478720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 1167019176832 + ... + 1167019177088.

Almost surely, 2^{299923928478720} is an apocalyptic number.

299923928478720 is a gapful number since it is divisible by the number (20) 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 299923928478720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711908744190336).

299923928478720 is an abundant number, since it is smaller than the sum of its proper divisors (1123893559901952).

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

299923928478720 is a wasteful number, since it uses less digits than its factorization.

299923928478720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 3950456832, while the sum is 81.

The spelling of 299923928478720 in words is "two hundred ninety-nine trillion, nine hundred twenty-three billion, nine hundred twenty-eight million, four hundred seventy-eight thousand, seven hundred twenty".