39745093279 has 4 divisors (see below), whose sum is σ = 40714485840. Its totient is φ = 38775700720.

The previous prime is 39745093261. The next prime is 39745093343. The reversal of 39745093279 is 97239054793.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39745093279 - 2²¹ = 39742996127 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39745093229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484696219 + ... + 484696300.

It is an arithmetic number, because the mean of its divisors is an integer number (10178621460).

Almost surely, 2^39745093279 is an apocalyptic number.

39745093279 is a deficient number, since it is larger than the sum of its proper divisors (969392561).

39745093279 is an equidigital number, since it uses as much as digits as its factorization.

39745093279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969392560.

The product of its (nonzero) digits is 12859560, while the sum is 58.

The spelling of 39745093279 in words is "thirty-nine billion, seven hundred forty-five million, ninety-three thousand, two hundred seventy-nine".