377647665861 has 8 divisors (see below), whose sum is σ = 503616039520. Its totient is φ = 251722201392.

The previous prime is 377647665799. The next prime is 377647665907. The reversal of 377647665861 is 168566746773.

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

It is not a de Polignac number, because 377647665861 - 2⁶ = 377647665797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 377647665792 and 377647665801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377647665361) 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, 10706755 + ... + 10741968.

It is an arithmetic number, because the mean of its divisors is an integer number (62952004940).

Almost surely, 2^377647665861 is an apocalyptic number.

It is an amenable number.

377647665861 is a deficient number, since it is larger than the sum of its proper divisors (125968373659).

377647665861 is a wasteful number, since it uses less digits than its factorization.

377647665861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21454595.

The product of its digits is 213373440, while the sum is 66.

The spelling of 377647665861 in words is "three hundred seventy-seven billion, six hundred forty-seven million, six hundred sixty-five thousand, eight hundred sixty-one".