85740607399999 has 4 divisors (see below), whose sum is σ = 85743173825920. Its totient is φ = 85738040974080.

The previous prime is 85740607399961. The next prime is 85740607400017. The reversal of 85740607399999 is 99999370604758.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85740607399999 - 2²⁷ = 85740473182271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85740607399919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283162847 + ... + 1283229664.

It is an arithmetic number, because the mean of its divisors is an integer number (21435793456480).

Almost surely, 2^{85740607399999} is an apocalyptic number.

85740607399999 is a deficient number, since it is larger than the sum of its proper divisors (2566425921).

85740607399999 is a wasteful number, since it uses less digits than its factorization.

85740607399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566425920.

The product of its (nonzero) digits is 8332994880, while the sum is 85.

The spelling of 85740607399999 in words is "eighty-five trillion, seven hundred forty billion, six hundred seven million, three hundred ninety-nine thousand, nine hundred ninety-nine".