85072874284069 has 4 divisors (see below), whose sum is σ = 97226142038944. Its totient is φ = 72919606529196.

The previous prime is 85072874284063. The next prime is 85072874284109. The reversal of 85072874284069 is 96048247827058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85072874284069 - 2¹¹ = 85072874282021 is a prime.

It is a super-2 number, since 2×85072874284069² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85072874283989 and 85072874284007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85072874284063) 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, 6076633877427 + ... + 6076633877440.

It is an arithmetic number, because the mean of its divisors is an integer number (24306535509736).

Almost surely, 2^{85072874284069} is an apocalyptic number.

It is an amenable number.

85072874284069 is a deficient number, since it is larger than the sum of its proper divisors (12153267754875).

85072874284069 is a wasteful number, since it uses less digits than its factorization.

85072874284069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153267754874.

The product of its (nonzero) digits is 433520640, while the sum is 70.

The spelling of 85072874284069 in words is "eighty-five trillion, seventy-two billion, eight hundred seventy-four million, two hundred eighty-four thousand, sixty-nine".