74748084137 has 4 divisors (see below), whose sum is σ = 74755370580. Its totient is φ = 74740797696.

The previous prime is 74748084133. The next prime is 74748084157. The reversal of 74748084137 is 73148084747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27166950976 + 47581133161 = 164824^2 + 218131^2 .

It is a cyclic number.

It is not a de Polignac number, because 74748084137 - 2² = 74748084133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74748084133) 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, 3627812 + ... + 3648357.

It is an arithmetic number, because the mean of its divisors is an integer number (18688842645).

Almost surely, 2^74748084137 is an apocalyptic number.

It is an amenable number.

74748084137 is a deficient number, since it is larger than the sum of its proper divisors (7286443).

74748084137 is a wasteful number, since it uses less digits than its factorization.

74748084137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286442.

The product of its (nonzero) digits is 4214784, while the sum is 53.

The spelling of 74748084137 in words is "seventy-four billion, seven hundred forty-eight million, eighty-four thousand, one hundred thirty-seven".