6891489375 has 20 divisors (see below), whose sum is σ = 11482143288. Its totient is φ = 3675460000.

The previous prime is 6891489337. The next prime is 6891489391. The reversal of 6891489375 is 5739841986.

It is not a de Polignac number, because 6891489375 - 2¹¹ = 6891487327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1835856 + ... + 1839605.

Almost surely, 2^6891489375 is an apocalyptic number.

6891489375 is a deficient number, since it is larger than the sum of its proper divisors (4590653913).

6891489375 is an equidigital number, since it uses as much as digits as its factorization.

6891489375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675484 (or 3675469 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The square root of 6891489375 is about 83014.9948804431. The cubic root of 6891489375 is about 1902.9952180555.

The spelling of 6891489375 in words is "six billion, eight hundred ninety-one million, four hundred eighty-nine thousand, three hundred seventy-five".