85802610577 has 4 divisors (see below), whose sum is σ = 85803939136. Its totient is φ = 85801282020.

The previous prime is 85802610533. The next prime is 85802610623. The reversal of 85802610577 is 77501620858.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85802610577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85802610577.

It is not an unprimeable number, because it can be changed into a prime (85802610077) 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, 562173 + ... + 698314.

It is an arithmetic number, because the mean of its divisors is an integer number (21450984784).

Almost surely, 2^85802610577 is an apocalyptic number.

It is an amenable number.

85802610577 is a deficient number, since it is larger than the sum of its proper divisors (1328559).

85802610577 is a wasteful number, since it uses less digits than its factorization.

85802610577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328558.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 85802610577 in words is "eighty-five billion, eight hundred two million, six hundred ten thousand, five hundred seventy-seven".