23277420217 has 4 divisors (see below), whose sum is σ = 23420226640. Its totient is φ = 23134613796.

The previous prime is 23277420209. The next prime is 23277420241. The reversal of 23277420217 is 71202477232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23277420217 - 2³ = 23277420209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23277720217) 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, 71402967 + ... + 71403292.

It is an arithmetic number, because the mean of its divisors is an integer number (5855056660).

Almost surely, 2^23277420217 is an apocalyptic number.

It is an amenable number.

23277420217 is a deficient number, since it is larger than the sum of its proper divisors (142806423).

23277420217 is a wasteful number, since it uses less digits than its factorization.

23277420217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142806422.

The product of its (nonzero) digits is 65856, while the sum is 37.

Adding to 23277420217 its reverse (71202477232), we get a palindrome (94479897449).

The spelling of 23277420217 in words is "twenty-three billion, two hundred seventy-seven million, four hundred twenty thousand, two hundred seventeen".