74492521950 has 576 divisors, whose sum is σ = 250621102080. Its totient is φ = 14436576000.

The previous prime is 74492521921. The next prime is 74492521963. The reversal of 74492521950 is 5912529447.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74492521950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 109066309 + ... + 109066991.

It is an arithmetic number, because the mean of its divisors is an integer number (435106080).

Almost surely, 2^74492521950 is an apocalyptic number.

74492521950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74492521950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125310551040).

74492521950 is an abundant number, since it is smaller than the sum of its proper divisors (176128580130).

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

74492521950 is a wasteful number, since it uses less digits than its factorization.

74492521950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 74492521950 in words is "seventy-four billion, four hundred ninety-two million, five hundred twenty-one thousand, nine hundred fifty".