85928393651 has 4 divisors (see below), whose sum is σ = 87337055904. Its totient is φ = 84519731400.

The previous prime is 85928393597. The next prime is 85928393699. The reversal of 85928393651 is 15639382958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15639382958 = 2 ⋅7819691479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85928393651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85928393051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704331035 + ... + 704331156.

It is an arithmetic number, because the mean of its divisors is an integer number (21834263976).

Almost surely, 2^85928393651 is an apocalyptic number.

85928393651 is a deficient number, since it is larger than the sum of its proper divisors (1408662253).

85928393651 is a wasteful number, since it uses less digits than its factorization.

85928393651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408662252.

The product of its digits is 13996800, while the sum is 59.

The spelling of 85928393651 in words is "eighty-five billion, nine hundred twenty-eight million, three hundred ninety-three thousand, six hundred fifty-one".