74144256336 has 80 divisors (see below), whose sum is σ = 218012296320. Its totient is φ = 24111947520.

The previous prime is 74144256323. The next prime is 74144256353. The reversal of 74144256336 is 63365244147.

74144256336 is a `hidden beast` number, since 7 + 4 + 1 + 4 + 4 + 2 + 5 + 633 + 6 = 666.

It is a super-2 number, since 2×74144256336² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74144256291 and 74144256300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075340 + ... + 2110763.

It is an arithmetic number, because the mean of its divisors is an integer number (2725153704).

Almost surely, 2^74144256336 is an apocalyptic number.

It is an amenable number.

74144256336 is an abundant number, since it is smaller than the sum of its proper divisors (143868039984).

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

74144256336 is a wasteful number, since it uses less digits than its factorization.

74144256336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186161 (or 4186149 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The spelling of 74144256336 in words is "seventy-four billion, one hundred forty-four million, two hundred fifty-six thousand, three hundred thirty-six".