2167421000623 has 4 divisors (see below), whose sum is σ = 2178423137880. Its totient is φ = 2156418863368.

The previous prime is 2167421000587. The next prime is 2167421000669. The reversal of 2167421000623 is 3260001247612.

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 2167421000623 - 2³⁷ = 2029982047151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167421000923) 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, 5501068333 + ... + 5501068726.

It is an arithmetic number, because the mean of its divisors is an integer number (544605784470).

Almost surely, 2^{2167421000623} is an apocalyptic number.

2167421000623 is a deficient number, since it is larger than the sum of its proper divisors (11002137257).

2167421000623 is a wasteful number, since it uses less digits than its factorization.

2167421000623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002137256.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 2167421000623 in words is "two trillion, one hundred sixty-seven billion, four hundred twenty-one million, six hundred twenty-three", and thus it is an aban number.