74239802445 has 16 divisors (see below), whose sum is σ = 119873445120. Its totient is φ = 39231307584.

The previous prime is 74239802381. The next prime is 74239802459. The reversal of 74239802445 is 54420893247.

It is not a de Polignac number, because 74239802445 - 2⁶ = 74239802381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74239802394 and 74239802403.

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, 22701669 + ... + 22704938.

It is an arithmetic number, because the mean of its divisors is an integer number (7492090320).

Almost surely, 2^74239802445 is an apocalyptic number.

It is an amenable number.

74239802445 is a deficient number, since it is larger than the sum of its proper divisors (45633642675).

74239802445 is a wasteful number, since it uses less digits than its factorization.

74239802445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45406724.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 74239802445 in words is "seventy-four billion, two hundred thirty-nine million, eight hundred two thousand, four hundred forty-five".