85687297629 has 8 divisors (see below), whose sum is σ = 118189376160. Its totient is φ = 55155042096.

The previous prime is 85687297627. The next prime is 85687297669. The reversal of 85687297629 is 92679278658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85687297629 - 2¹ = 85687297627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85687297627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492455647 + ... + 492455820.

It is an arithmetic number, because the mean of its divisors is an integer number (14773672020).

Almost surely, 2^85687297629 is an apocalyptic number.

It is an amenable number.

85687297629 is a deficient number, since it is larger than the sum of its proper divisors (32502078531).

85687297629 is a wasteful number, since it uses less digits than its factorization.

85687297629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984911499.

The product of its digits is 182891520, while the sum is 69.

The spelling of 85687297629 in words is "eighty-five billion, six hundred eighty-seven million, two hundred ninety-seven thousand, six hundred twenty-nine".