246420840667 has 4 divisors (see below), whose sum is σ = 246470258296. Its totient is φ = 246371423040.

The previous prime is 246420840661. The next prime is 246420840691. The reversal of 246420840667 is 766048024642.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246420840667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 246420840667.

It is not an unprimeable number, because it can be changed into a prime (246420840661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24701334 + ... + 24711307.

It is an arithmetic number, because the mean of its divisors is an integer number (61617564574).

Almost surely, 2^246420840667 is an apocalyptic number.

246420840667 is a deficient number, since it is larger than the sum of its proper divisors (49417629).

246420840667 is an equidigital number, since it uses as much as digits as its factorization.

246420840667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49417628.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 246420840667 in words is "two hundred forty-six billion, four hundred twenty million, eight hundred forty thousand, six hundred sixty-seven".