85253407678 has 16 divisors (see below), whose sum is σ = 135407900880. Its totient is φ = 40117641856.

The previous prime is 85253407651. The next prime is 85253407697. The reversal of 85253407678 is 87670435258.

It is a super-2 number, since 2×85253407678² (a number of 23 digits) contains 22 as substring.

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, 1529100 + ... + 1583872.

It is an arithmetic number, because the mean of its divisors is an integer number (8462993805).

Almost surely, 2^85253407678 is an apocalyptic number.

85253407678 is a deficient number, since it is larger than the sum of its proper divisors (50154493202).

85253407678 is a wasteful number, since it uses less digits than its factorization.

85253407678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100571.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 85253407678 in words is "eighty-five billion, two hundred fifty-three million, four hundred seven thousand, six hundred seventy-eight".