74299479552 has 320 divisors, whose sum is σ = 225788048640. Its totient is φ = 24116133888.

The previous prime is 74299479503. The next prime is 74299479607. The reversal of 74299479552 is 25597499247.

74299479552 is a `hidden beast` number, since 7 + 4 + 2 + 9 + 9 + 4 + 79 + 552 = 666.

It is a super-2 number, since 2×74299479552² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74299479552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89841763 + ... + 89842589.

It is an arithmetic number, because the mean of its divisors is an integer number (705587652).

Almost surely, 2^74299479552 is an apocalyptic number.

74299479552 is a gapful number since it is divisible by the number (72) 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 74299479552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112894024320).

74299479552 is an abundant number, since it is smaller than the sum of its proper divisors (151488569088).

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

74299479552 is an equidigital number, since it uses as much as digits as its factorization.

74299479552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 996 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The spelling of 74299479552 in words is "seventy-four billion, two hundred ninety-nine million, four hundred seventy-nine thousand, five hundred fifty-two".