6834868991 has 16 divisors (see below), whose sum is σ = 7233269760. Its totient is φ = 6445158720.

The previous prime is 6834868987. The next prime is 6834869053. The reversal of 6834868991 is 1998684386.

It is a cyclic number.

It is not a de Polignac number, because 6834868991 - 2² = 6834868987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6834868291) 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, 1380266 + ... + 1385208.

It is an arithmetic number, because the mean of its divisors is an integer number (452079360).

Almost surely, 2^6834868991 is an apocalyptic number.

6834868991 is a deficient number, since it is larger than the sum of its proper divisors (398400769).

6834868991 is a wasteful number, since it uses less digits than its factorization.

6834868991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806.

The product of its digits is 17915904, while the sum is 62.

The square root of 6834868991 is about 82673.2664831867. The cubic root of 6834868991 is about 1897.7692185320.

The spelling of 6834868991 in words is "six billion, eight hundred thirty-four million, eight hundred sixty-eight thousand, nine hundred ninety-one".