39669667764 has 48 divisors (see below), whose sum is σ = 92838181632. Its totient is φ = 13183898112.

The previous prime is 39669667757. The next prime is 39669667777. The reversal of 39669667764 is 46776696693.

It is a super-2 number, since 2×39669667764² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9737632 + ... + 9741704.

It is an arithmetic number, because the mean of its divisors is an integer number (1934128784).

Almost surely, 2^39669667764 is an apocalyptic number.

It is an amenable number.

39669667764 is an abundant number, since it is smaller than the sum of its proper divisors (53168513868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39669667764 is a wasteful number, since it uses less digits than its factorization.

39669667764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296 (or 6294 counting only the distinct ones).

The product of its digits is 370355328, while the sum is 69.

The spelling of 39669667764 in words is "thirty-nine billion, six hundred sixty-nine million, six hundred sixty-seven thousand, seven hundred sixty-four".