339344773821 has 12 divisors (see below), whose sum is σ = 490282753948. Its totient is φ = 226175350464.

The previous prime is 339344773799. The next prime is 339344773871. The reversal of 339344773821 is 128377443933.

339344773821 is a `hidden beast` number, since 3 + 3 + 93 + 4 + 477 + 3 + 82 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 58958638596 + 280386135225 = 242814^2 + 529515^2 .

It is not a de Polignac number, because 339344773821 - 2¹³ = 339344765629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339344773871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4502110 + ... + 4576863.

Almost surely, 2^339344773821 is an apocalyptic number.

It is an amenable number.

339344773821 is a deficient number, since it is larger than the sum of its proper divisors (150937980127).

339344773821 is a wasteful number, since it uses less digits than its factorization.

339344773821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9083132 (or 9083129 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The spelling of 339344773821 in words is "three hundred thirty-nine billion, three hundred forty-four million, seven hundred seventy-three thousand, eight hundred twenty-one".