39669716977 has 8 divisors (see below), whose sum is σ = 43606408032. Its totient is φ = 35788084800.

The previous prime is 39669716929. The next prime is 39669716987. The reversal of 39669716977 is 77961796693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39669716977 - 2²⁷ = 39535499249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39669716987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13763208 + ... + 13766089.

It is an arithmetic number, because the mean of its divisors is an integer number (5450801004).

Almost surely, 2^39669716977 is an apocalyptic number.

It is an amenable number.

39669716977 is a deficient number, since it is larger than the sum of its proper divisors (3936691055).

39669716977 is a wasteful number, since it uses less digits than its factorization.

39669716977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27529439.

The product of its digits is 162030456, while the sum is 70.

The spelling of 39669716977 in words is "thirty-nine billion, six hundred sixty-nine million, seven hundred sixteen thousand, nine hundred seventy-seven".