386665086977 has 8 divisors (see below), whose sum is σ = 420093588264. Its totient is φ = 353763019008.

The previous prime is 386665086961. The next prime is 386665087001. The reversal of 386665086977 is 779680566683.

It is a Cunningham number, because it is equal to 621824²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 386665086976 = 1^2 + 621824^2 .

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 386665086977 - 2⁴ = 386665086961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 386665086977.

It is not an unprimeable number, because it can be changed into a prime (386665086917) 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, 131606798 + ... + 131609735.

It is an arithmetic number, because the mean of its divisors is an integer number (52511698533).

Almost surely, 2^386665086977 is an apocalyptic number.

It is an amenable number.

386665086977 is a deficient number, since it is larger than the sum of its proper divisors (33428501287).

386665086977 is a wasteful number, since it uses less digits than its factorization.

386665086977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263216659.

The product of its (nonzero) digits is 548674560, while the sum is 71.

The spelling of 386665086977 in words is "three hundred eighty-six billion, six hundred sixty-five million, eighty-six thousand, nine hundred seventy-seven".