85687078658 has 8 divisors (see below), whose sum is σ = 128624645952. Its totient is φ = 42812196676.

The previous prime is 85687078639. The next prime is 85687078661.

85687078658 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15667910 + ... + 15673377.

It is an arithmetic number, because the mean of its divisors is an integer number (16078080744).

Almost surely, 2^85687078658 is an apocalyptic number.

85687078658 is a deficient number, since it is larger than the sum of its proper divisors (42937567294).

85687078658 is a wasteful number, since it uses less digits than its factorization.

85687078658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31342656.

The product of its (nonzero) digits is 180633600, while the sum is 68.

The spelling of 85687078658 in words is "eighty-five billion, six hundred eighty-seven million, seventy-eight thousand, six hundred fifty-eight".