56758635289 has 4 divisors (see below), whose sum is σ = 58589559040. Its totient is φ = 54927711540.

The previous prime is 56758635287. The next prime is 56758635317. The reversal of 56758635289 is 98253685765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56758635289 - 2¹ = 56758635287 is a prime.

It is a super-2 number, since 2×56758635289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56758635289.

It is not an unprimeable number, because it can be changed into a prime (56758635287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915461829 + ... + 915461890.

It is an arithmetic number, because the mean of its divisors is an integer number (14647389760).

Almost surely, 2^56758635289 is an apocalyptic number.

It is an amenable number.

56758635289 is a deficient number, since it is larger than the sum of its proper divisors (1830923751).

56758635289 is a wasteful number, since it uses less digits than its factorization.

56758635289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830923750.

The product of its digits is 108864000, while the sum is 64.

The spelling of 56758635289 in words is "fifty-six billion, seven hundred fifty-eight million, six hundred thirty-five thousand, two hundred eighty-nine".