31585052466477 has 6 divisors (see below), whose sum is σ = 45622853562702. Its totient is φ = 21056701644312.

The previous prime is 31585052466449. The next prime is 31585052466497. The reversal of 31585052466477 is 77466425058513.

31585052466477 is a `hidden beast` number, since 3 + 1 + 5 + 8 + 5 + 0 + 524 + 66 + 47 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26441459799876 + 5143592666601 = 5142126^2 + 2267949^2 .

It is not a de Polignac number, because 31585052466477 - 2⁶ = 31585052466413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31585052466497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1754725137018 + ... + 1754725137035.

It is an arithmetic number, because the mean of its divisors is an integer number (7603808927117).

Almost surely, 2^{31585052466477} is an apocalyptic number.

It is an amenable number.

31585052466477 is a deficient number, since it is larger than the sum of its proper divisors (14037801096225).

31585052466477 is a wasteful number, since it uses less digits than its factorization.

31585052466477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509450274059 (or 3509450274056 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 63.

The spelling of 31585052466477 in words is "thirty-one trillion, five hundred eighty-five billion, fifty-two million, four hundred sixty-six thousand, four hundred seventy-seven".