85434937786 has 12 divisors (see below), whose sum is σ = 140861736666. Its totient is φ = 38834062520.

The previous prime is 85434937781. The next prime is 85434937829. The reversal of 85434937786 is 68773943458.

It can be written as a sum of positive squares in only one way, i.e., 83192441761 + 2242496025 = 288431^2 + 47355^2 .

It is not an unprimeable number, because it can be changed into a prime (85434937781) 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 5 ways as a sum of consecutive naturals, for example, 176518225 + ... + 176518708.

Almost surely, 2^85434937786 is an apocalyptic number.

85434937786 is a deficient number, since it is larger than the sum of its proper divisors (55426798880).

85434937786 is a wasteful number, since it uses less digits than its factorization.

85434937786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353036957 (or 353036946 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 64.

The spelling of 85434937786 in words is "eighty-five billion, four hundred thirty-four million, nine hundred thirty-seven thousand, seven hundred eighty-six".