6881256623 has 2 divisors, whose sum is σ = 6881256624. Its totient is φ = 6881256622.

The previous prime is 6881256523. The next prime is 6881256631. The reversal of 6881256623 is 3266521886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6881256623 - 2¹² = 6881252527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6881256523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440628311 + 3440628312.

It is an arithmetic number, because the mean of its divisors is an integer number (3440628312).

Almost surely, 2^6881256623 is an apocalyptic number.

6881256623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881256623 is an equidigital number, since it uses as much as digits as its factorization.

6881256623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 6881256623 is about 82953.3400352270. The cubic root of 6881256623 is about 1902.0528710024.

The spelling of 6881256623 in words is "six billion, eight hundred eighty-one million, two hundred fifty-six thousand, six hundred twenty-three".