85766548538 has 8 divisors (see below), whose sum is σ = 140345261280. Its totient is φ = 38984794780.

The previous prime is 85766548499. The next prime is 85766548541. The reversal of 85766548538 is 83584566758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85766548538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 1949239718 + ... + 1949239761.

It is an arithmetic number, because the mean of its divisors is an integer number (17543157660).

Almost surely, 2^85766548538 is an apocalyptic number.

85766548538 is a deficient number, since it is larger than the sum of its proper divisors (54578712742).

85766548538 is a wasteful number, since it uses less digits than its factorization.

85766548538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898479492.

The product of its digits is 193536000, while the sum is 65.

The spelling of 85766548538 in words is "eighty-five billion, seven hundred sixty-six million, five hundred forty-eight thousand, five hundred thirty-eight".