854164468947 has 6 divisors (see below), whose sum is σ = 1138888092972. Its totient is φ = 569441912112.

The previous prime is 854164468931. The next prime is 854164469017. The reversal of 854164468947 is 749864461458.

854164468947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 854164468947 - 2⁴ = 854164468931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (854164468147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1333983 + ... + 1867575.

It is an arithmetic number, because the mean of its divisors is an integer number (189814682162).

Almost surely, 2^854164468947 is an apocalyptic number.

854164468947 is a deficient number, since it is larger than the sum of its proper divisors (284723624025).

854164468947 is an frugal number, since it uses more digits than its factorization.

854164468947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067189 (or 533596 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 66.

The spelling of 854164468947 in words is "eight hundred fifty-four billion, one hundred sixty-four million, four hundred sixty-eight thousand, nine hundred forty-seven".