346804901557 has 8 divisors (see below), whose sum is σ = 347054242136. Its totient is φ = 346555625472.

The previous prime is 346804901489. The next prime is 346804901581. The reversal of 346804901557 is 755109408643.

It can be written as a sum of positive squares in 4 ways, for example, as 1514688561 + 345290212996 = 38919^2 + 587614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 346804901557 - 2²⁷ = 346670683829 is a prime.

It is a super-2 number, since 2×346804901557² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346804901657) 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 7 ways as a sum of consecutive naturals, for example, 16261333 + ... + 16282645.

It is an arithmetic number, because the mean of its divisors is an integer number (43381780267).

Almost surely, 2^346804901557 is an apocalyptic number.

It is an amenable number.

346804901557 is a deficient number, since it is larger than the sum of its proper divisors (249340579).

346804901557 is a wasteful number, since it uses less digits than its factorization.

346804901557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32247.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 346804901557 in words is "three hundred forty-six billion, eight hundred four million, nine hundred one thousand, five hundred fifty-seven".