6904678842 has 32 divisors (see below), whose sum is σ = 15537964800. Its totient is φ = 2272424544.

The previous prime is 6904678789. The next prime is 6904678849. The reversal of 6904678842 is 2488764096.

6904678842 is a `hidden beast` number, since 69 + 0 + 467 + 88 + 42 = 666.

It is a super-2 number, since 2×6904678842² = 95349179822324921928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6904678849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805003 + ... + 813534.

It is an arithmetic number, because the mean of its divisors is an integer number (485561400).

Almost surely, 2^6904678842 is an apocalyptic number.

6904678842 is an abundant number, since it is smaller than the sum of its proper divisors (8633285958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6904678842 is a wasteful number, since it uses less digits than its factorization.

6904678842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618627 (or 1618621 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 6904678842 is about 83094.3971757422. The cubic root of 6904678842 is about 1904.2084776678.

The spelling of 6904678842 in words is "six billion, nine hundred four million, six hundred seventy-eight thousand, eight hundred forty-two".