4256480067869 has 2 divisors, whose sum is σ = 4256480067870. Its totient is φ = 4256480067868.

The previous prime is 4256480067811. The next prime is 4256480067899. The reversal of 4256480067869 is 9687600846524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4197704368900 + 58775698969 = 2048830^2 + 242437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4256480067869 is a prime.

It is a super-2 number, since 2×4256480067869² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4256480067899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128240033934 + 2128240033935.

It is an arithmetic number, because the mean of its divisors is an integer number (2128240033935).

Almost surely, 2^{4256480067869} is an apocalyptic number.

It is an amenable number.

4256480067869 is a deficient number, since it is larger than the sum of its proper divisors (1).

4256480067869 is an equidigital number, since it uses as much as digits as its factorization.

4256480067869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 4256480067869 in words is "four trillion, two hundred fifty-six billion, four hundred eighty million, sixty-seven thousand, eight hundred sixty-nine".