6864343977 has 8 divisors (see below), whose sum is σ = 9152844064. Its totient is φ = 4576036608.

The previous prime is 6864343973. The next prime is 6864344023. The reversal of 6864343977 is 7793434686.

It is a happy number.

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

It is not a de Polignac number, because 6864343977 - 2² = 6864343973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6864343973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100338 + ... + 154260.

It is an arithmetic number, because the mean of its divisors is an integer number (1144105508).

Almost surely, 2^6864343977 is an apocalyptic number.

It is an amenable number.

6864343977 is a deficient number, since it is larger than the sum of its proper divisors (2288500087).

6864343977 is a wasteful number, since it uses less digits than its factorization.

6864343977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96359.

The product of its digits is 18289152, while the sum is 57.

The square root of 6864343977 is about 82851.3366035817. The cubic root of 6864343977 is about 1900.4933139184.

The spelling of 6864343977 in words is "six billion, eight hundred sixty-four million, three hundred forty-three thousand, nine hundred seventy-seven".