85143968134 has 16 divisors (see below), whose sum is σ = 133303021920. Its totient is φ = 40710577600.

The previous prime is 85143968113. The next prime is 85143968137. The reversal of 85143968134 is 43186934158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85143968137) 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, 54817 + ... + 416284.

It is an arithmetic number, because the mean of its divisors is an integer number (8331438870).

Almost surely, 2^85143968134 is an apocalyptic number.

85143968134 is a deficient number, since it is larger than the sum of its proper divisors (48159053786).

85143968134 is a wasteful number, since it uses less digits than its factorization.

85143968134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475055.

The product of its digits is 2488320, while the sum is 52.

The spelling of 85143968134 in words is "eighty-five billion, one hundred forty-three million, nine hundred sixty-eight thousand, one hundred thirty-four".