351607722145 has 16 divisors (see below), whose sum is σ = 455177860560. Its totient is φ = 259744835584.

The previous prime is 351607722143. The next prime is 351607722163. The reversal of 351607722145 is 541227706153.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12509975104 + 339097747041 = 111848^2 + 582321^2 .

It is a cyclic number.

It is not a de Polignac number, because 351607722145 - 2¹ = 351607722143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (351607722143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39019660 + ... + 39028669.

It is an arithmetic number, because the mean of its divisors is an integer number (28448616285).

Almost surely, 2^351607722145 is an apocalyptic number.

It is an amenable number.

351607722145 is a deficient number, since it is larger than the sum of its proper divisors (103570138415).

351607722145 is a wasteful number, since it uses less digits than its factorization.

351607722145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78048404.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 351607722145 in words is "three hundred fifty-one billion, six hundred seven million, seven hundred twenty-two thousand, one hundred forty-five".