74134007136 has 240 divisors, whose sum is σ = 249698744064. Its totient is φ = 21136432896.

The previous prime is 74134007107. The next prime is 74134007141. The reversal of 74134007136 is 63170043147.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74134007136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9122371 + ... + 9130493.

Almost surely, 2^74134007136 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 74134007136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124849372032).

74134007136 is an abundant number, since it is smaller than the sum of its proper divisors (175564736928).

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

74134007136 is a wasteful number, since it uses less digits than its factorization.

74134007136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655 (or 8638 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 74134007136 in words is "seventy-four billion, one hundred thirty-four million, seven thousand, one hundred thirty-six".