256773743763 has 8 divisors (see below), whose sum is σ = 342370918800. Its totient is φ = 171179532288.

The previous prime is 256773743747. The next prime is 256773743797. The reversal of 256773743763 is 367347377652.

256773743763 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 256773743763 - 2⁴ = 256773743747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256773743697 and 256773743706.

It is not an unprimeable number, because it can be changed into a prime (256773743363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530158 + ... + 891411.

It is an arithmetic number, because the mean of its divisors is an integer number (42796364850).

Almost surely, 2^256773743763 is an apocalyptic number.

256773743763 is a deficient number, since it is larger than the sum of its proper divisors (85597175037).

256773743763 is a wasteful number, since it uses less digits than its factorization.

256773743763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481781.

The product of its digits is 93350880, while the sum is 60.

The spelling of 256773743763 in words is "two hundred fifty-six billion, seven hundred seventy-three million, seven hundred forty-three thousand, seven hundred sixty-three".