74488938149 has 8 divisors (see below), whose sum is σ = 76060507800. Its totient is φ = 72932265216.

The previous prime is 74488938143. The next prime is 74488938169. The reversal of 74488938149 is 94183988447.

It can be written as a sum of positive squares in 4 ways, for example, as 29243394049 + 45245544100 = 171007^2 + 212710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74488938149 - 2⁴ = 74488938133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74488938143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3714074 + ... + 3734075.

It is an arithmetic number, because the mean of its divisors is an integer number (9507563475).

Almost surely, 2^74488938149 is an apocalyptic number.

It is an amenable number.

74488938149 is a deficient number, since it is larger than the sum of its proper divisors (1571569651).

74488938149 is a wasteful number, since it uses less digits than its factorization.

74488938149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448359.

The product of its digits is 55738368, while the sum is 65.

The spelling of 74488938149 in words is "seventy-four billion, four hundred eighty-eight million, nine hundred thirty-eight thousand, one hundred forty-nine".