74944138430 has 32 divisors (see below), whose sum is σ = 154505292480. Its totient is φ = 25639384320.

The previous prime is 74944138429. The next prime is 74944138481. The reversal of 74944138430 is 3483144947.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128935 + ... + 1193474.

It is an arithmetic number, because the mean of its divisors is an integer number (4828290390).

Almost surely, 2^74944138430 is an apocalyptic number.

74944138430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74944138430 is an abundant number, since it is smaller than the sum of its proper divisors (79561154050).

74944138430 is a wasteful number, since it uses less digits than its factorization.

74944138430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322884.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 74944138430 in words is "seventy-four billion, nine hundred forty-four million, one hundred thirty-eight thousand, four hundred thirty".