85642618757 has 8 divisors (see below), whose sum is σ = 87381679680. Its totient is φ = 83918358720.

The previous prime is 85642618729. The next prime is 85642618847. The reversal of 85642618757 is 75781624658.

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 85642618757 - 2²⁰ = 85641570181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85642618696 and 85642618705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85642618057) 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 7 ways as a sum of consecutive naturals, for example, 3688532 + ... + 3711677.

It is an arithmetic number, because the mean of its divisors is an integer number (10922709960).

Almost surely, 2^85642618757 is an apocalyptic number.

It is an amenable number.

85642618757 is a deficient number, since it is larger than the sum of its proper divisors (1739060923).

85642618757 is a wasteful number, since it uses less digits than its factorization.

85642618757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400443.

The product of its digits is 22579200, while the sum is 59.

The spelling of 85642618757 in words is "eighty-five billion, six hundred forty-two million, six hundred eighteen thousand, seven hundred fifty-seven".