85390642335 has 32 divisors (see below), whose sum is σ = 139232737728. Its totient is φ = 44672808960.

The previous prime is 85390642331. The next prime is 85390642343. The reversal of 85390642335 is 53324609358.

It is not a de Polignac number, because 85390642335 - 2² = 85390642331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85390642331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5144109 + ... + 5160681.

It is an arithmetic number, because the mean of its divisors is an integer number (4351023054).

Almost surely, 2^85390642335 is an apocalyptic number.

85390642335 is a deficient number, since it is larger than the sum of its proper divisors (53842095393).

85390642335 is a wasteful number, since it uses less digits than its factorization.

85390642335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23115.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 85390642335 in words is "eighty-five billion, three hundred ninety million, six hundred forty-two thousand, three hundred thirty-five".