357705839349 has 6 divisors (see below), whose sum is σ = 516686212406. Its totient is φ = 238470559560.

The previous prime is 357705839339. The next prime is 357705839353. The reversal of 357705839349 is 943938507753.

357705839349 is a `hidden beast` number, since 3 + 5 + 7 + 7 + 0 + 583 + 9 + 3 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 219614076900 + 138091762449 = 468630^2 + 371607^2 .

It is not a de Polignac number, because 357705839349 - 2⁸ = 357705839093 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 (357705839339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19872546622 + ... + 19872546639.

Almost surely, 2^357705839349 is an apocalyptic number.

It is an amenable number.

357705839349 is a deficient number, since it is larger than the sum of its proper divisors (158980373057).

357705839349 is a wasteful number, since it uses less digits than its factorization.

357705839349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39745093267 (or 39745093264 counting only the distinct ones).

The product of its (nonzero) digits is 85730400, while the sum is 63.

The spelling of 357705839349 in words is "three hundred fifty-seven billion, seven hundred five million, eight hundred thirty-nine thousand, three hundred forty-nine".