349132406657 has 4 divisors (see below), whose sum is σ = 349133828400. Its totient is φ = 349130984916.

The previous prime is 349132406653. The next prime is 349132406663. The reversal of 349132406657 is 756604231943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 349132406657 - 2² = 349132406653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349132406653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237407 + ... + 868692.

It is an arithmetic number, because the mean of its divisors is an integer number (87283457100).

Almost surely, 2^349132406657 is an apocalyptic number.

It is an amenable number.

349132406657 is a deficient number, since it is larger than the sum of its proper divisors (1421743).

349132406657 is a wasteful number, since it uses less digits than its factorization.

349132406657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421742.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 349132406657 in words is "three hundred forty-nine billion, one hundred thirty-two million, four hundred six thousand, six hundred fifty-seven".