351668420735 has 4 divisors (see below), whose sum is σ = 422002104888. Its totient is φ = 281334736584.

The previous prime is 351668420717. The next prime is 351668420759. The reversal of 351668420735 is 537024866153.

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

It is a cyclic number.

It is not a de Polignac number, because 351668420735 - 2⁶ = 351668420671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35166842069 + ... + 35166842078.

It is an arithmetic number, because the mean of its divisors is an integer number (105500526222).

Almost surely, 2^351668420735 is an apocalyptic number.

351668420735 is a deficient number, since it is larger than the sum of its proper divisors (70333684153).

351668420735 is an equidigital number, since it uses as much as digits as its factorization.

351668420735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70333684152.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 351668420735 in words is "three hundred fifty-one billion, six hundred sixty-eight million, four hundred twenty thousand, seven hundred thirty-five".