85646542826 has 16 divisors (see below), whose sum is σ = 138483790368. Its totient is φ = 39491550000.

The previous prime is 85646542823. The next prime is 85646542847. The reversal of 85646542826 is 62824564658.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85646542823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539800 + ... + 1594451.

It is an arithmetic number, because the mean of its divisors is an integer number (8655236898).

Almost surely, 2^85646542826 is an apocalyptic number.

85646542826 is a deficient number, since it is larger than the sum of its proper divisors (52837247542).

85646542826 is a wasteful number, since it uses less digits than its factorization.

85646542826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135317.

The product of its digits is 22118400, while the sum is 56.

The spelling of 85646542826 in words is "eighty-five billion, six hundred forty-six million, five hundred forty-two thousand, eight hundred twenty-six".