85206531719 has 8 divisors (see below), whose sum is σ = 90345768240. Its totient is φ = 80132763456.

The previous prime is 85206531703. The next prime is 85206531779. The reversal of 85206531719 is 91713560258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85206531719 - 2⁴ = 85206531703 is a prime.

It is a super-2 number, since 2×85206531719² (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 (85206531779) 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, 16364384 + ... + 16369589.

It is an arithmetic number, because the mean of its divisors is an integer number (11293221030).

Almost surely, 2^85206531719 is an apocalyptic number.

85206531719 is a deficient number, since it is larger than the sum of its proper divisors (5139236521).

85206531719 is a wasteful number, since it uses less digits than its factorization.

85206531719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32734129.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 85206531719 in words is "eighty-five billion, two hundred six million, five hundred thirty-one thousand, seven hundred nineteen".