74271755064 has 128 divisors (see below), whose sum is σ = 202199639040. Its totient is φ = 22597965312.

The previous prime is 74271755059. The next prime is 74271755069. The reversal of 74271755064 is 46055717247.

It is an interprime number because it is at equal distance from previous prime (74271755059) and next prime (74271755069).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74271755069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21798049 + ... + 21801455.

It is an arithmetic number, because the mean of its divisors is an integer number (1579684680).

Almost surely, 2^74271755064 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 74271755064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101099819520).

74271755064 is an abundant number, since it is smaller than the sum of its proper divisors (127927883976).

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

74271755064 is a wasteful number, since it uses less digits than its factorization.

74271755064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4185 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 74271755064 in words is "seventy-four billion, two hundred seventy-one million, seven hundred fifty-five thousand, sixty-four".