6138891695 has 8 divisors (see below), whose sum is σ = 7375037040. Its totient is φ = 4905535360.

The previous prime is 6138891677. The next prime is 6138891721. The reversal of 6138891695 is 5961988316.

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

It is not a de Polignac number, because 6138891695 - 2¹⁴ = 6138875311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6138891695.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692405 + ... + 701214.

It is an arithmetic number, because the mean of its divisors is an integer number (921879630).

Almost surely, 2^6138891695 is an apocalyptic number.

6138891695 is a deficient number, since it is larger than the sum of its proper divisors (1236145345).

6138891695 is a wasteful number, since it uses less digits than its factorization.

6138891695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394505.

The product of its digits is 2799360, while the sum is 56.

The square root of 6138891695 is about 78351.0797309137. The cubic root of 6138891695 is about 1831.0350475604.

The spelling of 6138891695 in words is "six billion, one hundred thirty-eight million, eight hundred ninety-one thousand, six hundred ninety-five".