3456631398349 has 4 divisors (see below), whose sum is σ = 3457169234464. Its totient is φ = 3456093562236.

The previous prime is 3456631398329. The next prime is 3456631398361. The reversal of 3456631398349 is 9438931366543.

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 3456631398349 - 2⁷ = 3456631398221 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 (3456631398329) 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, 268908417 + ... + 268921270.

It is an arithmetic number, because the mean of its divisors is an integer number (864292308616).

Almost surely, 2^{3456631398349} is an apocalyptic number.

It is an amenable number.

3456631398349 is a deficient number, since it is larger than the sum of its proper divisors (537836115).

3456631398349 is an equidigital number, since it uses as much as digits as its factorization.

3456631398349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537836114.

The product of its digits is 151165440, while the sum is 64.

The spelling of 3456631398349 in words is "three trillion, four hundred fifty-six billion, six hundred thirty-one million, three hundred ninety-eight thousand, three hundred forty-nine".