320213744375777 has 32 divisors (see below), whose sum is σ = 374504422440960. Its totient is φ = 268135534820160.

The previous prime is 320213744375743. The next prime is 320213744375851. The reversal of 320213744375777 is 777573447312023.

It is a happy number.

It is not a de Polignac number, because 320213744375777 - 2²⁰ = 320213743327201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320213744375677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47123174 + ... + 53488512.

It is an arithmetic number, because the mean of its divisors is an integer number (11703263201280).

Almost surely, 2^{320213744375777} is an apocalyptic number.

It is an amenable number.

320213744375777 is a deficient number, since it is larger than the sum of its proper divisors (54290678065183).

320213744375777 is a wasteful number, since it uses less digits than its factorization.

320213744375777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366341.

The product of its (nonzero) digits is 145212480, while the sum is 62.

The spelling of 320213744375777 in words is "three hundred twenty trillion, two hundred thirteen billion, seven hundred forty-four million, three hundred seventy-five thousand, seven hundred seventy-seven".