39074129993 has 4 divisors (see below), whose sum is σ = 39419918868. Its totient is φ = 38728341120.

The previous prime is 39074129981. The next prime is 39074130019. The reversal of 39074129993 is 39992147093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39992147093 = 19 ⋅2104849847.

It can be written as a sum of positive squares in 2 ways, for example, as 8220504889 + 30853625104 = 90667^2 + 175652^2 .

It is a cyclic number.

It is not a de Polignac number, because 39074129993 - 2⁴ = 39074129977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39074129953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172894268 + ... + 172894493.

It is an arithmetic number, because the mean of its divisors is an integer number (9854979717).

Almost surely, 2^39074129993 is an apocalyptic number.

It is an amenable number.

39074129993 is a deficient number, since it is larger than the sum of its proper divisors (345788875).

39074129993 is a wasteful number, since it uses less digits than its factorization.

39074129993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345788874.

The product of its (nonzero) digits is 3306744, while the sum is 56.

The spelling of 39074129993 in words is "thirty-nine billion, seventy-four million, one hundred twenty-nine thousand, nine hundred ninety-three".