74397329808 has 80 divisors (see below), whose sum is σ = 194900858880. Its totient is φ = 24450611328.

The previous prime is 74397329801. The next prime is 74397329813. The reversal of 74397329808 is 80892379347.

It is not an unprimeable number, because it can be changed into a prime (74397329801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2743291 + ... + 2770277.

It is an arithmetic number, because the mean of its divisors is an integer number (2436260736).

Almost surely, 2^74397329808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74397329808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97450429440).

74397329808 is an abundant number, since it is smaller than the sum of its proper divisors (120503529072).

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

74397329808 is a wasteful number, since it uses less digits than its factorization.

74397329808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27804 (or 27798 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 74397329808 in words is "seventy-four billion, three hundred ninety-seven million, three hundred twenty-nine thousand, eight hundred eight".