6864738091 has 12 divisors (see below), whose sum is σ = 7334505072. Its totient is φ = 6423536768.

The previous prime is 6864738043. The next prime is 6864738107. The reversal of 6864738091 is 1908374686.

It is a happy number.

It is not a de Polignac number, because 6864738091 - 2⁷ = 6864737963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6864738031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18655 + ... + 118648.

It is an arithmetic number, because the mean of its divisors is an integer number (611208756).

Almost surely, 2^6864738091 is an apocalyptic number.

6864738091 is a deficient number, since it is larger than the sum of its proper divisors (469766981).

6864738091 is a wasteful number, since it uses less digits than its factorization.

6864738091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137510 (or 137493 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 6864738091 is about 82853.7150102517. The cubic root of 6864738091 is about 1900.5296852837.

The spelling of 6864738091 in words is "six billion, eight hundred sixty-four million, seven hundred thirty-eight thousand, ninety-one".