74085147450 has 288 divisors, whose sum is σ = 219580320960. Its totient is φ = 18506880000.

The previous prime is 74085147431. The next prime is 74085147523. The reversal of 74085147450 is 5474158047.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74085147396 and 74085147405.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 51843336 + ... + 51844764.

It is an arithmetic number, because the mean of its divisors is an integer number (762431670).

Almost surely, 2^74085147450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74085147450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109790160480).

74085147450 is an abundant number, since it is smaller than the sum of its proper divisors (145495173510).

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

74085147450 is a wasteful number, since it uses less digits than its factorization.

74085147450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The spelling of 74085147450 in words is "seventy-four billion, eighty-five million, one hundred forty-seven thousand, four hundred fifty".