2623656856 has 8 divisors (see below), whose sum is σ = 4919356620. Its totient is φ = 1311828424.

The previous prime is 2623656853. The next prime is 2623656887. The reversal of 2623656856 is 6586563262.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623656853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163978546 + ... + 163978561.

Almost surely, 2^2623656856 is an apocalyptic number.

It is an amenable number.

2623656856 is a deficient number, since it is larger than the sum of its proper divisors (2295699764).

2623656856 is a wasteful number, since it uses less digits than its factorization.

2623656856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327957113 (or 327957109 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 49.

The square root of 2623656856 is about 51221.6444093705. The cubic root of 2623656856 is about 1379.2267697995.

The spelling of 2623656856 in words is "two billion, six hundred twenty-three million, six hundred fifty-six thousand, eight hundred fifty-six".