85632521413 has 4 divisors (see below), whose sum is σ = 85683892320. Its totient is φ = 85581150508.

The previous prime is 85632521399. The next prime is 85632521423. The reversal of 85632521413 is 31412523658.

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 not a de Polignac number, because 85632521413 - 2⁹ = 85632520901 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 (85632521423) 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, 25682953 + ... + 25686286.

It is an arithmetic number, because the mean of its divisors is an integer number (21420973080).

Almost surely, 2^85632521413 is an apocalyptic number.

It is an amenable number.

85632521413 is a deficient number, since it is larger than the sum of its proper divisors (51370907).

85632521413 is a wasteful number, since it uses less digits than its factorization.

85632521413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51370906.

The product of its digits is 172800, while the sum is 40.

The spelling of 85632521413 in words is "eighty-five billion, six hundred thirty-two million, five hundred twenty-one thousand, four hundred thirteen".