313489047577 has 4 divisors (see below), whose sum is σ = 313651226980. Its totient is φ = 313326868176.

The previous prime is 313489047563. The next prime is 313489047637. The reversal of 313489047577 is 775740984313.

It is a happy number.

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 203925399561 + 109563648016 = 451581^2 + 331004^2 .

It is a cyclic number.

It is not a de Polignac number, because 313489047577 - 2¹⁹ = 313488523289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313489045577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81086802 + ... + 81090667.

It is an arithmetic number, because the mean of its divisors is an integer number (78412806745).

Almost surely, 2^313489047577 is an apocalyptic number.

It is an amenable number.

313489047577 is a deficient number, since it is larger than the sum of its proper divisors (162179403).

313489047577 is a wasteful number, since it uses less digits than its factorization.

313489047577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162179402.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 313489047577 in words is "three hundred thirteen billion, four hundred eighty-nine million, forty-seven thousand, five hundred seventy-seven".