2656764042 has 8 divisors (see below), whose sum is σ = 5313528096. Its totient is φ = 885588012.

The previous prime is 2656764031. The next prime is 2656764059. The reversal of 2656764042 is 2404676562.

It is a sphenic number, since it is the product of 3 distinct primes.

2656764042 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2656763985 and 2656764003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221396998 + ... + 221397009.

It is an arithmetic number, because the mean of its divisors is an integer number (664191012).

Almost surely, 2^2656764042 is an apocalyptic number.

2656764042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2656764042 is a wasteful number, since it uses less digits than its factorization.

2656764042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442794012.

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 2656764042 is about 51543.8070188844. The cubic root of 2656764042 is about 1385.0038954306.

It can be divided in two parts, 26567 and 64042, that added together give a palindrome (90609).

The spelling of 2656764042 in words is "two billion, six hundred fifty-six million, seven hundred sixty-four thousand, forty-two".