85013967919 has 16 divisors (see below), whose sum is σ = 86508817920. Its totient is φ = 83528625600.

The previous prime is 85013967917. The next prime is 85013967959. The reversal of 85013967919 is 91976931058.

It is a cyclic number.

It is not a de Polignac number, because 85013967919 - 2¹ = 85013967917 is a prime.

It is a super-2 number, since 2×85013967919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85013967917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36159594 + ... + 36161944.

It is an arithmetic number, because the mean of its divisors is an integer number (5406801120).

Almost surely, 2^85013967919 is an apocalyptic number.

85013967919 is a deficient number, since it is larger than the sum of its proper divisors (1494850001).

85013967919 is a wasteful number, since it uses less digits than its factorization.

85013967919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 85013967919 in words is "eighty-five billion, thirteen million, nine hundred sixty-seven thousand, nine hundred nineteen".