420512342867 has 2 divisors, whose sum is σ = 420512342868. Its totient is φ = 420512342866.

The previous prime is 420512342857. The next prime is 420512342891. The reversal of 420512342867 is 768243215024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420512342867 - 2²⁶ = 420445234003 is a prime.

It is not a weakly prime, because it can be changed into another prime (420512342807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210256171433 + 210256171434.

It is an arithmetic number, because the mean of its divisors is an integer number (210256171434).

Almost surely, 2^420512342867 is an apocalyptic number.

420512342867 is a deficient number, since it is larger than the sum of its proper divisors (1).

420512342867 is an equidigital number, since it uses as much as digits as its factorization.

420512342867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 420512342867 in words is "four hundred twenty billion, five hundred twelve million, three hundred forty-two thousand, eight hundred sixty-seven".