74748172100 has 180 divisors, whose sum is σ = 200368089684. Its totient is φ = 24119101440.

The previous prime is 74748172097. The next prime is 74748172111. The reversal of 74748172100 is 127184747.

It can be written as a sum of positive squares in 6 ways, for example, as 1217172544 + 73530999556 = 34888^2 + 271166^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4072544 + ... + 4090856.

Almost surely, 2^74748172100 is an apocalyptic number.

74748172100 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 74748172100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100184044842).

74748172100 is an abundant number, since it is smaller than the sum of its proper divisors (125619917584).

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

74748172100 is a wasteful number, since it uses less digits than its factorization.

74748172100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18372 (or 18344 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 41.

The spelling of 74748172100 in words is "seventy-four billion, seven hundred forty-eight million, one hundred seventy-two thousand, one hundred".