346138401257 has 4 divisors (see below), whose sum is σ = 377605528656. Its totient is φ = 314671273860.

The previous prime is 346138401197. The next prime is 346138401263. The reversal of 346138401257 is 752104831643.

It is a happy number.

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 346138401257 - 2¹² = 346138397161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346138461257) 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, 15733563683 + ... + 15733563704.

It is an arithmetic number, because the mean of its divisors is an integer number (94401382164).

Almost surely, 2^346138401257 is an apocalyptic number.

It is an amenable number.

346138401257 is a deficient number, since it is larger than the sum of its proper divisors (31467127399).

346138401257 is a wasteful number, since it uses less digits than its factorization.

346138401257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31467127398.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 346138401257 in words is "three hundred forty-six billion, one hundred thirty-eight million, four hundred one thousand, two hundred fifty-seven".