351866701867 has 4 divisors (see below), whose sum is σ = 351867888280. Its totient is φ = 351865515456.

The previous prime is 351866701841. The next prime is 351866701877. The reversal of 351866701867 is 768107668153.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 351866701867 - 2²⁷ = 351732484139 is a prime.

It is a super-2 number, since 2×351866701867² (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 (351866701877) 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, 288859 + ... + 887227.

It is an arithmetic number, because the mean of its divisors is an integer number (87966972070).

Almost surely, 2^351866701867 is an apocalyptic number.

351866701867 is a deficient number, since it is larger than the sum of its proper divisors (1186413).

351866701867 is an equidigital number, since it uses as much as digits as its factorization.

351866701867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186412.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 351866701867 in words is "three hundred fifty-one billion, eight hundred sixty-six million, seven hundred one thousand, eight hundred sixty-seven".