351306212881 has 8 divisors (see below), whose sum is σ = 378372703464. Its totient is φ = 324245856000.

The previous prime is 351306212879. The next prime is 351306212941. The reversal of 351306212881 is 188212603153.

It can be written as a sum of positive squares in 4 ways, for example, as 41965571025 + 309340641856 = 204855^2 + 556184^2 .

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 351306212881 - 2¹ = 351306212879 is a prime.

It is a super-2 number, since 2×351306212881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351306212581) 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, 1414120 + ... + 1643881.

It is an arithmetic number, because the mean of its divisors is an integer number (47296587933).

Almost surely, 2^351306212881 is an apocalyptic number.

It is an amenable number.

351306212881 is a deficient number, since it is larger than the sum of its proper divisors (27066490583).

351306212881 is a wasteful number, since it uses less digits than its factorization.

351306212881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066851.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 351306212881 in words is "three hundred fifty-one billion, three hundred six million, two hundred twelve thousand, eight hundred eighty-one".