6891406674 has 8 divisors (see below), whose sum is σ = 13782813360. Its totient is φ = 2297135556.

The previous prime is 6891406667. The next prime is 6891406681. The reversal of 6891406674 is 4766041986.

It is an interprime number because it is at equal distance from previous prime (6891406667) and next prime (6891406681).

It is a sphenic number, since it is the product of 3 distinct primes.

6891406674 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574283884 + ... + 574283895.

It is an arithmetic number, because the mean of its divisors is an integer number (1722851670).

Almost surely, 2^6891406674 is an apocalyptic number.

6891406674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6891406674 is a wasteful number, since it uses less digits than its factorization.

6891406674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148567784.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 6891406674 is about 83014.4967701425. The cubic root of 6891406674 is about 1902.9876057563.

The spelling of 6891406674 in words is "six billion, eight hundred ninety-one million, four hundred six thousand, six hundred seventy-four".