74215555152 has 80 divisors (see below), whose sum is σ = 193923754752. Its totient is φ = 24455208960.

The previous prime is 74215555097. The next prime is 74215555199. The reversal of 74215555152 is 25155551247.

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, 4232868 + ... + 4250364.

Almost surely, 2^74215555152 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 74215555152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96961877376).

74215555152 is an abundant number, since it is smaller than the sum of its proper divisors (119708199600).

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

74215555152 is a wasteful number, since it uses less digits than its factorization.

74215555152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18516 (or 18510 counting only the distinct ones).

The product of its digits is 350000, while the sum is 42.

The spelling of 74215555152 in words is "seventy-four billion, two hundred fifteen million, five hundred fifty-five thousand, one hundred fifty-two".