74996551140 has 144 divisors (see below), whose sum is σ = 244592413632. Its totient is φ = 17119759104.

The previous prime is 74996551057. The next prime is 74996551171. The reversal of 74996551140 is 4115569947.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2297574 + ... + 2329986.

It is an arithmetic number, because the mean of its divisors is an integer number (1698558428).

Almost surely, 2^74996551140 is an apocalyptic number.

74996551140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74996551140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122296206816).

74996551140 is an abundant number, since it is smaller than the sum of its proper divisors (169595862492).

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

74996551140 is a wasteful number, since it uses less digits than its factorization.

74996551140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33226 (or 33217 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 74996551140 in words is "seventy-four billion, nine hundred ninety-six million, five hundred fifty-one thousand, one hundred forty".