39694949695 has 16 divisors (see below), whose sum is σ = 49661374752. Its totient is φ = 30432205440.

The previous prime is 39694949689. The next prime is 39694949699. The reversal of 39694949695 is 59694949693.

It is not a de Polignac number, because 39694949695 - 2³ = 39694949687 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 (39694949699) 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 15 ways as a sum of consecutive naturals, for example, 1730376 + ... + 1753165.

It is an arithmetic number, because the mean of its divisors is an integer number (3103835922).

Almost surely, 2^39694949695 is an apocalyptic number.

39694949695 is a deficient number, since it is larger than the sum of its proper divisors (9966425057).

39694949695 is a wasteful number, since it uses less digits than its factorization.

39694949695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483642.

The product of its digits is 510183360, while the sum is 73.

It can be divided in two parts, 396949 and 49695, that added together give a palindrome (446644).

The spelling of 39694949695 in words is "thirty-nine billion, six hundred ninety-four million, nine hundred forty-nine thousand, six hundred ninety-five".