56783333889 has 6 divisors (see below), whose sum is σ = 82020371186. Its totient is φ = 37855555920.

The previous prime is 56783333879. The next prime is 56783333903. The reversal of 56783333889 is 98833338765.

56783333889 is a `hidden beast` number, since 567 + 8 + 3 + 33 + 38 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51521282289 + 5262051600 = 226983^2 + 72540^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56783333889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56783333879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3154629652 + ... + 3154629669.

Almost surely, 2^56783333889 is an apocalyptic number.

It is an amenable number.

56783333889 is a deficient number, since it is larger than the sum of its proper divisors (25237037297).

56783333889 is a wasteful number, since it uses less digits than its factorization.

56783333889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309259327 (or 6309259324 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 56783333889 in words is "fifty-six billion, seven hundred eighty-three million, three hundred thirty-three thousand, eight hundred eighty-nine".