85901229677 has 4 divisors (see below), whose sum is σ = 85907683836. Its totient is φ = 85894775520.

The previous prime is 85901229641. The next prime is 85901229697. The reversal of 85901229677 is 77692210958.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9898459081 + 76002770596 = 99491^2 + 275686^2 .

It is a cyclic number.

It is not a de Polignac number, because 85901229677 - 2¹⁸ = 85900967533 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 (85901229607) 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, 3207074 + ... + 3233747.

It is an arithmetic number, because the mean of its divisors is an integer number (21476920959).

Almost surely, 2^85901229677 is an apocalyptic number.

It is an amenable number.

85901229677 is a deficient number, since it is larger than the sum of its proper divisors (6454159).

85901229677 is a wasteful number, since it uses less digits than its factorization.

85901229677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454158.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 85901229677 in words is "eighty-five billion, nine hundred one million, two hundred twenty-nine thousand, six hundred seventy-seven".