6342869978 has 16 divisors (see below), whose sum is σ = 10127592000. Its totient is φ = 2970757152.

The previous prime is 6342869969. The next prime is 6342870047. The reversal of 6342869978 is 8799682436.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6342869978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934358 + ... + 941121.

It is an arithmetic number, because the mean of its divisors is an integer number (632974500).

Almost surely, 2^6342869978 is an apocalyptic number.

6342869978 is a deficient number, since it is larger than the sum of its proper divisors (3784722022).

6342869978 is a wasteful number, since it uses less digits than its factorization.

6342869978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875589.

The product of its digits is 31352832, while the sum is 62.

The square root of 6342869978 is about 79642.1369502351. The cubic root of 6342869978 is about 1851.0945534479.

The spelling of 6342869978 in words is "six billion, three hundred forty-two million, eight hundred sixty-nine thousand, nine hundred seventy-eight".