74533741620 has 96 divisors (see below), whose sum is σ = 225056237952. Its totient is φ = 18321596928.

The previous prime is 74533741553. The next prime is 74533741643. The reversal of 74533741620 is 2614733547.

It is a super-4 number, since 4×74533741620⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506559 + ... + 636921.

It is an arithmetic number, because the mean of its divisors is an integer number (2344335812).

Almost surely, 2^74533741620 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 74533741620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112528118976).

74533741620 is an abundant number, since it is smaller than the sum of its proper divisors (150522496332).

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

74533741620 is a wasteful number, since it uses less digits than its factorization.

74533741620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131121 (or 131119 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 74533741620 in words is "seventy-four billion, five hundred thirty-three million, seven hundred forty-one thousand, six hundred twenty".