313920284761 has 4 divisors (see below), whose sum is σ = 314131112500. Its totient is φ = 313709457024.

The previous prime is 313920284749. The next prime is 313920284809. The reversal of 313920284761 is 167482029313.

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 145652142736 + 168268142025 = 381644^2 + 410205^2 .

It is a cyclic number.

It is not a de Polignac number, because 313920284761 - 2¹⁵ = 313920251993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313920284701) 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, 105411636 + ... + 105414613.

It is an arithmetic number, because the mean of its divisors is an integer number (78532778125).

Almost surely, 2^313920284761 is an apocalyptic number.

It is an amenable number.

313920284761 is a deficient number, since it is larger than the sum of its proper divisors (210827739).

313920284761 is a wasteful number, since it uses less digits than its factorization.

313920284761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210827738.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 313920284761 in words is "three hundred thirteen billion, nine hundred twenty million, two hundred eighty-four thousand, seven hundred sixty-one".