351866478463 has 2 divisors, whose sum is σ = 351866478464. Its totient is φ = 351866478462.

The previous prime is 351866478409. The next prime is 351866478539. The reversal of 351866478463 is 364874668153.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 351866478463 - 2²⁵ = 351832924031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351866470463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175933239231 + 175933239232.

It is an arithmetic number, because the mean of its divisors is an integer number (175933239232).

Almost surely, 2^351866478463 is an apocalyptic number.

351866478463 is a deficient number, since it is larger than the sum of its proper divisors (1).

351866478463 is an equidigital number, since it uses as much as digits as its factorization.

351866478463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69672960, while the sum is 61.

The spelling of 351866478463 in words is "three hundred fifty-one billion, eight hundred sixty-six million, four hundred seventy-eight thousand, four hundred sixty-three".