74044484640 has 960 divisors, whose sum is σ = 324202652928. Its totient is φ = 15527116800.

The previous prime is 74044484629. The next prime is 74044484687. The reversal of 74044484640 is 4648444047.

74044484640 is a `hidden beast` number, since 74 + 0 + 44 + 484 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 63231255 + ... + 63232425.

Almost surely, 2^74044484640 is an apocalyptic number.

74044484640 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 74044484640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162101326464).

74044484640 is an abundant number, since it is smaller than the sum of its proper divisors (250158168288).

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

74044484640 is a wasteful number, since it uses less digits than its factorization.

74044484640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 45.

The spelling of 74044484640 in words is "seventy-four billion, forty-four million, four hundred eighty-four thousand, six hundred forty".