351868510465 has 4 divisors (see below), whose sum is σ = 422242212564. Its totient is φ = 281494808368.

The previous prime is 351868510463. The next prime is 351868510501. The reversal of 351868510465 is 564015868153.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198417684481 + 153450825984 = 445441^2 + 391728^2 .

It is a cyclic number.

It is not a de Polignac number, because 351868510465 - 2¹ = 351868510463 is a prime.

It is a super-2 number, since 2×351868510465² (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 (351868510463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35186851042 + ... + 35186851051.

It is an arithmetic number, because the mean of its divisors is an integer number (105560553141).

Almost surely, 2^351868510465 is an apocalyptic number.

It is an amenable number.

351868510465 is a deficient number, since it is larger than the sum of its proper divisors (70373702099).

351868510465 is an equidigital number, since it uses as much as digits as its factorization.

351868510465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70373702098.

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 351868510465 in words is "three hundred fifty-one billion, eight hundred sixty-eight million, five hundred ten thousand, four hundred sixty-five".