85691635629 has 16 divisors (see below), whose sum is σ = 114581269440. Its totient is φ = 56965112960.

The previous prime is 85691635621. The next prime is 85691635639. The reversal of 85691635629 is 92653619658.

It is a cyclic number.

It is not a de Polignac number, because 85691635629 - 2³ = 85691635621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85691635621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476019 + ... + 1532975.

It is an arithmetic number, because the mean of its divisors is an integer number (7161329340).

Almost surely, 2^85691635629 is an apocalyptic number.

It is an amenable number.

85691635629 is a deficient number, since it is larger than the sum of its proper divisors (28889633811).

85691635629 is a wasteful number, since it uses less digits than its factorization.

85691635629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58380.

The product of its digits is 20995200, while the sum is 60.

The spelling of 85691635629 in words is "eighty-five billion, six hundred ninety-one million, six hundred thirty-five thousand, six hundred twenty-nine".