6891192534 has 32 divisors (see below), whose sum is σ = 13939311456. Its totient is φ = 2270960640.

The previous prime is 6891192533. The next prime is 6891192551. The reversal of 6891192534 is 4352911986.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6891192533) 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, 588424 + ... + 600020.

It is an arithmetic number, because the mean of its divisors is an integer number (435603483).

Almost surely, 2^6891192534 is an apocalyptic number.

6891192534 is an abundant number, since it is smaller than the sum of its proper divisors (7048118922).

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

6891192534 is a wasteful number, since it uses less digits than its factorization.

6891192534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12720.

The product of its digits is 466560, while the sum is 48.

The square root of 6891192534 is about 83013.2069853948. The cubic root of 6891192534 is about 1902.9678947352.

The spelling of 6891192534 in words is "six billion, eight hundred ninety-one million, one hundred ninety-two thousand, five hundred thirty-four".