56791266387 has 8 divisors (see below), whose sum is σ = 76963027920. Its totient is φ = 37240174560.

The previous prime is 56791266277. The next prime is 56791266409. The reversal of 56791266387 is 78366219765.

56791266387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56791266387 - 2⁸ = 56791266131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56791266387.

It is not an unprimeable number, because it can be changed into a prime (56791216387) 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, 155167212 + ... + 155167577.

It is an arithmetic number, because the mean of its divisors is an integer number (9620378490).

Almost surely, 2^56791266387 is an apocalyptic number.

56791266387 is a deficient number, since it is larger than the sum of its proper divisors (20171761533).

56791266387 is a wasteful number, since it uses less digits than its factorization.

56791266387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310334853.

The product of its digits is 22861440, while the sum is 60.

The spelling of 56791266387 in words is "fifty-six billion, seven hundred ninety-one million, two hundred sixty-six thousand, three hundred eighty-seven".