312890283553 has 4 divisors (see below), whose sum is σ = 313133023620. Its totient is φ = 312647543488.

The previous prime is 312890283527. The next prime is 312890283577. The reversal of 312890283553 is 355382098213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220460299024 + 92429984529 = 469532^2 + 304023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312890283553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312890283497 and 312890283506.

It is not an unprimeable number, because it can be changed into a prime (312890283253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121368100 + ... + 121370677.

It is an arithmetic number, because the mean of its divisors is an integer number (78283255905).

Almost surely, 2^312890283553 is an apocalyptic number.

It is an amenable number.

312890283553 is a deficient number, since it is larger than the sum of its proper divisors (242740067).

312890283553 is a wasteful number, since it uses less digits than its factorization.

312890283553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242740066.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 312890283553 in words is "three hundred twelve billion, eight hundred ninety million, two hundred eighty-three thousand, five hundred fifty-three".