39763779964 has 12 divisors (see below), whose sum is σ = 69947168704. Its totient is φ = 19778874624.

The previous prime is 39763779961. The next prime is 39763780039. The reversal of 39763779964 is 46997736793.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 39763779893 and 39763779902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39763779961) 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, 25752972 + ... + 25754515.

Almost surely, 2^39763779964 is an apocalyptic number.

It is an amenable number.

39763779964 is a deficient number, since it is larger than the sum of its proper divisors (30183388740).

39763779964 is a wasteful number, since it uses less digits than its factorization.

39763779964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51507684 (or 51507682 counting only the distinct ones).

The product of its digits is 324060912, while the sum is 70.

The spelling of 39763779964 in words is "thirty-nine billion, seven hundred sixty-three million, seven hundred seventy-nine thousand, nine hundred sixty-four".