311962113747649 has 8 divisors (see below), whose sum is σ = 312071441892840. Its totient is φ = 311852787043200.

The previous prime is 311962113747563. The next prime is 311962113747733. The reversal of 311962113747649 is 946747311269113.

It can be written as a sum of positive squares in 4 ways, for example, as 276515093760049 + 35447019987600 = 16628743^2 + 5953740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311962113747649 - 2¹³ = 311962113739457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311962113747049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617272839 + ... + 617778019.

It is an arithmetic number, because the mean of its divisors is an integer number (39008930236605).

Almost surely, 2^{311962113747649} is an apocalyptic number.

It is an amenable number.

311962113747649 is a deficient number, since it is larger than the sum of its proper divisors (109328145191).

311962113747649 is a wasteful number, since it uses less digits than its factorization.

311962113747649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720371.

The product of its digits is 41150592, while the sum is 64.

The spelling of 311962113747649 in words is "three hundred eleven trillion, nine hundred sixty-two billion, one hundred thirteen million, seven hundred forty-seven thousand, six hundred forty-nine".