6894207428156 has 6 divisors (see below), whose sum is σ = 12064862999280. Its totient is φ = 3447103714076.

The previous prime is 6894207428137. The next prime is 6894207428209. The reversal of 6894207428156 is 6518247024986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861775928516 + ... + 861775928523.

It is an arithmetic number, because the mean of its divisors is an integer number (2010810499880).

Almost surely, 2^{6894207428156} is an apocalyptic number.

It is an amenable number.

6894207428156 is a deficient number, since it is larger than the sum of its proper divisors (5170655571124).

6894207428156 is a wasteful number, since it uses less digits than its factorization.

6894207428156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723551857043 (or 1723551857041 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 6894207428156 in words is "six trillion, eight hundred ninety-four billion, two hundred seven million, four hundred twenty-eight thousand, one hundred fifty-six".