6844957978 has 8 divisors (see below), whose sum is σ = 10341303840. Its totient is φ = 3397856700.

The previous prime is 6844957943. The next prime is 6844957981. The reversal of 6844957978 is 8797594486.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12310798 + ... + 12311353.

It is an arithmetic number, because the mean of its divisors is an integer number (1292662980).

Almost surely, 2^6844957978 is an apocalyptic number.

6844957978 is a deficient number, since it is larger than the sum of its proper divisors (3496345862).

6844957978 is a wasteful number, since it uses less digits than its factorization.

6844957978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24622292.

The product of its digits is 121927680, while the sum is 67.

The square root of 6844957978 is about 82734.2612102145. The cubic root of 6844957978 is about 1898.7025285892.

The spelling of 6844957978 in words is "six billion, eight hundred forty-four million, nine hundred fifty-seven thousand, nine hundred seventy-eight".