339945863481 has 24 divisors (see below), whose sum is σ = 561211237184. Its totient is φ = 194244130080.

The previous prime is 339945863479. The next prime is 339945863501. The reversal of 339945863481 is 184368549933.

339945863481 is a `hidden beast` number, since 3 + 3 + 9 + 9 + 4 + 586 + 3 + 48 + 1 = 666.

It is not a de Polignac number, because 339945863481 - 2¹ = 339945863479 is a prime.

It is a super-3 number, since 3×339945863481³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (339945863461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1092315 + ... + 1368591.

Almost surely, 2^339945863481 is an apocalyptic number.

It is an amenable number.

339945863481 is a deficient number, since it is larger than the sum of its proper divisors (221265373703).

339945863481 is a wasteful number, since it uses less digits than its factorization.

339945863481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295821 (or 295818 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 339945863481 in words is "three hundred thirty-nine billion, nine hundred forty-five million, eight hundred sixty-three thousand, four hundred eighty-one".