85495639751 has 4 divisors (see below), whose sum is σ = 85560459600. Its totient is φ = 85430819904.

The previous prime is 85495639741. The next prime is 85495639771. The reversal of 85495639751 is 15793659458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85495639751 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 (85495639711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32407946 + ... + 32410583.

It is an arithmetic number, because the mean of its divisors is an integer number (21390114900).

Almost surely, 2^85495639751 is an apocalyptic number.

85495639751 is a deficient number, since it is larger than the sum of its proper divisors (64819849).

85495639751 is a wasteful number, since it uses less digits than its factorization.

85495639751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64819848.

The product of its digits is 40824000, while the sum is 62.

The spelling of 85495639751 in words is "eighty-five billion, four hundred ninety-five million, six hundred thirty-nine thousand, seven hundred fifty-one".