74749626013 has 4 divisors (see below), whose sum is σ = 74909689920. Its totient is φ = 74589562108.

The previous prime is 74749626001. The next prime is 74749626023. The reversal of 74749626013 is 31062694747.

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 an emirpimes, since its reverse is a distinct semiprime: 31062694747 = 7 ⋅4437527821.

It is a cyclic number.

It is not a de Polignac number, because 74749626013 - 2⁵ = 74749625981 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74749626023) 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, 80031253 + ... + 80032186.

It is an arithmetic number, because the mean of its divisors is an integer number (18727422480).

Almost surely, 2^74749626013 is an apocalyptic number.

It is an amenable number.

74749626013 is a deficient number, since it is larger than the sum of its proper divisors (160063907).

74749626013 is a wasteful number, since it uses less digits than its factorization.

74749626013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160063906.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 74749626013 in words is "seventy-four billion, seven hundred forty-nine million, six hundred twenty-six thousand, thirteen".