1423220642467 has 4 divisors (see below), whose sum is σ = 1532699153440. Its totient is φ = 1313742131496.

The previous prime is 1423220642461. The next prime is 1423220642479. The reversal of 1423220642467 is 7642460223241.

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 1423220642467 - 2³¹ = 1421073158819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423220642461) 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, 54739255467 + ... + 54739255492.

It is an arithmetic number, because the mean of its divisors is an integer number (383174788360).

Almost surely, 2^{1423220642467} is an apocalyptic number.

1423220642467 is a deficient number, since it is larger than the sum of its proper divisors (109478510973).

1423220642467 is a wasteful number, since it uses less digits than its factorization.

1423220642467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109478510972.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 1423220642467 in words is "one trillion, four hundred twenty-three billion, two hundred twenty million, six hundred forty-two thousand, four hundred sixty-seven".