351291222925 has 12 divisors (see below), whose sum is σ = 435608470836. Its totient is φ = 281028233600.

The previous prime is 351291222899. The next prime is 351291222973. The reversal of 351291222925 is 529222192153.

It can be written as a sum of positive squares in 6 ways, for example, as 16444984644 + 334846238281 = 128238^2 + 578659^2 .

It is not a de Polignac number, because 351291222925 - 2⁹ = 351291222413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2795547 + ... + 2918503.

It is an arithmetic number, because the mean of its divisors is an integer number (36300705903).

Almost surely, 2^351291222925 is an apocalyptic number.

It is an amenable number.

351291222925 is a deficient number, since it is larger than the sum of its proper divisors (84317247911).

351291222925 is a wasteful number, since it uses less digits than its factorization.

351291222925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237248 (or 237243 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The spelling of 351291222925 in words is "three hundred fifty-one billion, two hundred ninety-one million, two hundred twenty-two thousand, nine hundred twenty-five".