85718655448 has 8 divisors (see below), whose sum is σ = 160722478980. Its totient is φ = 42859327720.

The previous prime is 85718655443. The next prime is 85718655457. The reversal of 85718655448 is 84455681758.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85718655443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5357415958 + ... + 5357415973.

Almost surely, 2^85718655448 is an apocalyptic number.

It is an amenable number.

85718655448 is a deficient number, since it is larger than the sum of its proper divisors (75003823532).

85718655448 is a wasteful number, since it uses less digits than its factorization.

85718655448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10714831937 (or 10714831933 counting only the distinct ones).

The product of its digits is 43008000, while the sum is 61.

The spelling of 85718655448 in words is "eighty-five billion, seven hundred eighteen million, six hundred fifty-five thousand, four hundred forty-eight".