85408334767 has 6 divisors (see below), whose sum is σ = 97610409128. Its totient is φ = 73206481332.

The previous prime is 85408334741. The next prime is 85408334783. The reversal of 85408334767 is 76743380458.

It is not a de Polignac number, because 85408334767 - 2³¹ = 83260851119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85408334467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 717984 + ... + 828442.

Almost surely, 2^85408334767 is an apocalyptic number.

85408334767 is a deficient number, since it is larger than the sum of its proper divisors (12202074361).

85408334767 is an frugal number, since it uses more digits than its factorization.

85408334767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220925 (or 110466 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 85408334767 in words is "eighty-five billion, four hundred eight million, three hundred thirty-four thousand, seven hundred sixty-seven".