2656487788 has 12 divisors (see below), whose sum is σ = 4649717520. Its totient is φ = 1327997072.

The previous prime is 2656487749. The next prime is 2656487789. The reversal of 2656487788 is 8877846562.

It is not an unprimeable number, because it can be changed into a prime (2656487789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36331 + ... + 81442.

It is an arithmetic number, because the mean of its divisors is an integer number (387476460).

Almost surely, 2^2656487788 is an apocalyptic number.

It is an amenable number.

2656487788 is a deficient number, since it is larger than the sum of its proper divisors (1993229732).

2656487788 is a wasteful number, since it uses less digits than its factorization.

2656487788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123416 (or 123414 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 61.

The square root of 2656487788 is about 51541.1271510432. The cubic root of 2656487788 is about 1384.9558888930.

The spelling of 2656487788 in words is "two billion, six hundred fifty-six million, four hundred eighty-seven thousand, seven hundred eighty-eight".