3831320805377 has 16 divisors (see below), whose sum is σ = 4428591748560. Its totient is φ = 3282971461632.

The previous prime is 3831320805359. The next prime is 3831320805391. The reversal of 3831320805377 is 7735080231383.

It is a Cunningham number, because it is equal to 1957376²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 34594512016 + 3796726293361 = 185996^2 + 1948519^2 .

It is a cyclic number.

It is not a de Polignac number, because 3831320805377 - 2¹⁸ = 3831320543233 is a prime.

It is a super-2 number, since 2×3831320805377² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3831320805307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118725602 + ... + 118757867.

It is an arithmetic number, because the mean of its divisors is an integer number (276786984285).

Almost surely, 2^{3831320805377} is an apocalyptic number.

It is an amenable number.

3831320805377 is a deficient number, since it is larger than the sum of its proper divisors (597270943183).

3831320805377 is a wasteful number, since it uses less digits than its factorization.

3831320805377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237483572.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 3831320805377 in words is "three trillion, eight hundred thirty-one billion, three hundred twenty million, eight hundred five thousand, three hundred seventy-seven".