74008778312 has 64 divisors (see below), whose sum is σ = 160314577920. Its totient is φ = 31373549568.

The previous prime is 74008778303. The next prime is 74008778329. The reversal of 74008778312 is 21387780047.

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, 15734153 + ... + 15738855.

It is an arithmetic number, because the mean of its divisors is an integer number (2504915280).

Almost surely, 2^74008778312 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 74008778312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80157288960).

74008778312 is an abundant number, since it is smaller than the sum of its proper divisors (86305799608).

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

74008778312 is a wasteful number, since it uses less digits than its factorization.

74008778312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710 (or 7706 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 74008778312 in words is "seventy-four billion, eight million, seven hundred seventy-eight thousand, three hundred twelve".