2180877623 has 4 divisors (see below), whose sum is σ = 2309164560. Its totient is φ = 2052590688.

The previous prime is 2180877563. The next prime is 2180877707. The reversal of 2180877623 is 3267780812.

It is a happy number.

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 2180877623 - 2⁸ = 2180877367 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 (2180877823) 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, 64143443 + ... + 64143476.

It is an arithmetic number, because the mean of its divisors is an integer number (577291140).

Almost surely, 2^2180877623 is an apocalyptic number.

2180877623 is a deficient number, since it is larger than the sum of its proper divisors (128286937).

2180877623 is a wasteful number, since it uses less digits than its factorization.

2180877623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128286936.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 2180877623 is about 46699.8674837520. The cubic root of 2180877623 is about 1296.8122335621.

The spelling of 2180877623 in words is "two billion, one hundred eighty million, eight hundred seventy-seven thousand, six hundred twenty-three".