5681574156463 has 2 divisors, whose sum is σ = 5681574156464. Its totient is φ = 5681574156462.

The previous prime is 5681574156443. The next prime is 5681574156491. The reversal of 5681574156463 is 3646514751865.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5681574156463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5681574156413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840787078231 + 2840787078232.

It is an arithmetic number, because the mean of its divisors is an integer number (2840787078232).

Almost surely, 2^{5681574156463} is an apocalyptic number.

5681574156463 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681574156463 is an equidigital number, since it uses as much as digits as its factorization.

5681574156463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 61.

The spelling of 5681574156463 in words is "five trillion, six hundred eighty-one billion, five hundred seventy-four million, one hundred fifty-six thousand, four hundred sixty-three".