39968029253 has 4 divisors (see below), whose sum is σ = 42071609760. Its totient is φ = 37864448748.

The previous prime is 39968029229. The next prime is 39968029261. The reversal of 39968029253 is 35292086993.

39968029253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 39968029253 - 2¹² = 39968025157 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 (39968026253) 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, 1051790225 + ... + 1051790262.

It is an arithmetic number, because the mean of its divisors is an integer number (10517902440).

Almost surely, 2^39968029253 is an apocalyptic number.

It is an amenable number.

39968029253 is a deficient number, since it is larger than the sum of its proper divisors (2103580507).

39968029253 is a wasteful number, since it uses less digits than its factorization.

39968029253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103580506.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 39968029253 in words is "thirty-nine billion, nine hundred sixty-eight million, twenty-nine thousand, two hundred fifty-three".