6717451881 has 16 divisors (see below), whose sum is σ = 10774860800. Its totient is φ = 3636515088.

The previous prime is 6717451877. The next prime is 6717451889. The reversal of 6717451881 is 1881547176.

It is not a de Polignac number, because 6717451881 - 2² = 6717451877 is a prime.

It is a super-2 number, since 2×6717451881² = 90248319547100876322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6717451881.

It is not an unprimeable number, because it can be changed into a prime (6717451889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8417461 + ... + 8418258.

It is an arithmetic number, because the mean of its divisors is an integer number (673428800).

Almost surely, 2^6717451881 is an apocalyptic number.

It is an amenable number.

6717451881 is a deficient number, since it is larger than the sum of its proper divisors (4057408919).

6717451881 is a wasteful number, since it uses less digits than its factorization.

6717451881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835748.

The product of its digits is 376320, while the sum is 48.

The square root of 6717451881 is about 81960.0627195953. The cubic root of 6717451881 is about 1886.8390451939.

The spelling of 6717451881 in words is "six billion, seven hundred seventeen million, four hundred fifty-one thousand, eight hundred eighty-one".