799974150635520 has 3040 divisors, whose sum is σ = 3622791830220288. Its totient is φ = 164553082011648.

The previous prime is 799974150635501. The next prime is 799974150635533. The reversal of 799974150635520 is 25536051479997.

799974150635520 is a `hidden beast` number, since 7 + 9 + 9 + 9 + 7 + 4 + 1 + 5 + 0 + 63 + 552 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 290582690464 + ... + 290582693216.

Almost surely, 2^{799974150635520} is an apocalyptic number.

799974150635520 is a gapful number since it is divisible by the number (70) 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 799974150635520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811395915110144).

799974150635520 is an abundant number, since it is smaller than the sum of its proper divisors (2822817679584768).

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

799974150635520 is an equidigital number, since it uses as much as digits as its factorization.

799974150635520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 642978000, while the sum is 72.

The spelling of 799974150635520 in words is "seven hundred ninety-nine trillion, nine hundred seventy-four billion, one hundred fifty million, six hundred thirty-five thousand, five hundred twenty".