6849715887 has 64 divisors (see below), whose sum is σ = 12020736000. Its totient is φ = 3772293120.

The previous prime is 6849715883. The next prime is 6849715927. The reversal of 6849715887 is 7885179486.

6849715887 is a `hidden beast` number, since 6 + 8 + 49 + 7 + 1 + 588 + 7 = 666.

It is not a de Polignac number, because 6849715887 - 2² = 6849715883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6849715883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1503489 + ... + 1508037.

It is an arithmetic number, because the mean of its divisors is an integer number (187824000).

Almost surely, 2^6849715887 is an apocalyptic number.

6849715887 is a deficient number, since it is larger than the sum of its proper divisors (5171020113).

6849715887 is a wasteful number, since it uses less digits than its factorization.

6849715887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853 (or 4847 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 63.

The square root of 6849715887 is about 82763.0103790335. The cubic root of 6849715887 is about 1899.1423541052.

The spelling of 6849715887 in words is "six billion, eight hundred forty-nine million, seven hundred fifteen thousand, eight hundred eighty-seven".