351727272644 has 36 divisors (see below), whose sum is σ = 683265074604. Its totient is φ = 158293080000.

The previous prime is 351727272619. The next prime is 351727272683. The reversal of 351727272644 is 446272727153.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 233638823044 + 118088449600 = 483362^2 + 343640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 351727272592 and 351727272601.

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, 3548687 + ... + 3646454.

Almost surely, 2^351727272644 is an apocalyptic number.

It is an amenable number.

351727272644 is a deficient number, since it is larger than the sum of its proper divisors (331537801960).

351727272644 is a wasteful number, since it uses less digits than its factorization.

351727272644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195268 (or 7195255 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 50.

Adding to 351727272644 its reverse (446272727153), we get a palindrome (797999999797).

The spelling of 351727272644 in words is "three hundred fifty-one billion, seven hundred twenty-seven million, two hundred seventy-two thousand, six hundred forty-four".