56628770271 has 8 divisors (see below), whose sum is σ = 75590154624. Its totient is φ = 37709949720.

The previous prime is 56628770221. The next prime is 56628770273. The reversal of 56628770271 is 17207782665.

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

It is not a de Polignac number, because 56628770271 - 2⁹ = 56628769759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56628770273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10637845 + ... + 10643166.

It is an arithmetic number, because the mean of its divisors is an integer number (9448769328).

Almost surely, 2^56628770271 is an apocalyptic number.

56628770271 is a deficient number, since it is larger than the sum of its proper divisors (18961384353).

56628770271 is a wasteful number, since it uses less digits than its factorization.

56628770271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281901.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 56628770271 in words is "fifty-six billion, six hundred twenty-eight million, seven hundred seventy thousand, two hundred seventy-one".