74306106253 has 4 divisors (see below), whose sum is σ = 74306656768. Its totient is φ = 74305555740.

The previous prime is 74306106247. The next prime is 74306106263. The reversal of 74306106253 is 35260160347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 74306106253 - 2²⁹ = 73769235341 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 (74306106263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80308 + ... + 393778.

It is an arithmetic number, because the mean of its divisors is an integer number (18576664192).

Almost surely, 2^74306106253 is an apocalyptic number.

It is an amenable number.

74306106253 is a deficient number, since it is larger than the sum of its proper divisors (550515).

74306106253 is a wasteful number, since it uses less digits than its factorization.

74306106253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550514.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 74306106253 in words is "seventy-four billion, three hundred six million, one hundred six thousand, two hundred fifty-three".