351256054213 has 8 divisors (see below), whose sum is σ = 357908512248. Its totient is φ = 344604521664.

The previous prime is 351256054189. The next prime is 351256054217. The reversal of 351256054213 is 312450652153.

It can be written as a sum of positive squares in 4 ways, for example, as 67702999204 + 283553055009 = 260198^2 + 532497^2 .

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 351256054213 - 2⁵ = 351256054181 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 (351256054217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560295 + ... + 1008187.

It is an arithmetic number, because the mean of its divisors is an integer number (44738564031).

Almost surely, 2^351256054213 is an apocalyptic number.

It is an amenable number.

351256054213 is a deficient number, since it is larger than the sum of its proper divisors (6652458035).

351256054213 is a wasteful number, since it uses less digits than its factorization.

351256054213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462743.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 351256054213 in words is "three hundred fifty-one billion, two hundred fifty-six million, fifty-four thousand, two hundred thirteen".