74901840552 has 384 divisors, whose sum is σ = 262548000000. Its totient is φ = 18718801920.

The previous prime is 74901840521. The next prime is 74901840569. The reversal of 74901840552 is 25504810947.

74901840552 is a `hidden beast` number, since 7 + 4 + 90 + 1 + 8 + 4 + 0 + 552 = 666.

It is a super-2 number, since 2×74901840552² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74901840498 and 74901840507.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59968824 + ... + 59970072.

It is an arithmetic number, because the mean of its divisors is an integer number (683718750).

Almost surely, 2^74901840552 is an apocalyptic number.

74901840552 is a gapful number since it is divisible by the number (72) 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 74901840552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131274000000).

74901840552 is an abundant number, since it is smaller than the sum of its proper divisors (187646159448).

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

74901840552 is a wasteful number, since it uses less digits than its factorization.

74901840552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 74901840552 in words is "seventy-four billion, nine hundred one million, eight hundred forty thousand, five hundred fifty-two".