6849642087778 has 16 divisors (see below), whose sum is σ = 11750172205824. Its totient is φ = 2933578738080.

The previous prime is 6849642087773. The next prime is 6849642087797. The reversal of 6849642087778 is 8777802469486.

It is not an unprimeable number, because it can be changed into a prime (6849642087773) 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, 165158250 + ... + 165199717.

It is an arithmetic number, because the mean of its divisors is an integer number (734385762864).

Almost surely, 2^{6849642087778} is an apocalyptic number.

6849642087778 is a deficient number, since it is larger than the sum of its proper divisors (4900530118046).

6849642087778 is a wasteful number, since it uses less digits than its factorization.

6849642087778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330359457.

The product of its (nonzero) digits is 1820786688, while the sum is 76.

The spelling of 6849642087778 in words is "six trillion, eight hundred forty-nine billion, six hundred forty-two million, eighty-seven thousand, seven hundred seventy-eight".