85978526615 has 8 divisors (see below), whose sum is σ = 103246542000. Its totient is φ = 68734614592.

The previous prime is 85978526587. The next prime is 85978526663. The reversal of 85978526615 is 51662587958.

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

It is a cyclic number.

It is not a de Polignac number, because 85978526615 - 2⁶ = 85978526551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6017990 + ... + 6032259.

It is an arithmetic number, because the mean of its divisors is an integer number (12905817750).

Almost surely, 2^85978526615 is an apocalyptic number.

85978526615 is a deficient number, since it is larger than the sum of its proper divisors (17268015385).

85978526615 is a wasteful number, since it uses less digits than its factorization.

85978526615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051681.

The product of its digits is 36288000, while the sum is 62.

The spelling of 85978526615 in words is "eighty-five billion, nine hundred seventy-eight million, five hundred twenty-six thousand, six hundred fifteen".