39197796813 has 120 divisors (see below), whose sum is σ = 67944910176. Its totient is φ = 21767054400.

The previous prime is 39197796793. The next prime is 39197796817. The reversal of 39197796813 is 31869779193.

39197796813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39197796813 - 2⁶ = 39197796749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39197796817) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 172677406 + ... + 172677632.

Almost surely, 2^39197796813 is an apocalyptic number.

It is an amenable number.

39197796813 is a deficient number, since it is larger than the sum of its proper divisors (28747113363).

39197796813 is a wasteful number, since it uses less digits than its factorization.

39197796813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 429 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 39197796813 in words is "thirty-nine billion, one hundred ninety-seven million, seven hundred ninety-six thousand, eight hundred thirteen".