85944868497 has 24 divisors (see below), whose sum is σ = 125379169344. Its totient is φ = 56726128224.

The previous prime is 85944868487. The next prime is 85944868511. The reversal of 85944868497 is 79486844958.

85944868497 is a `hidden beast` number, since 8 + 5 + 94 + 48 + 6 + 8 + 497 = 666.

It is not a de Polignac number, because 85944868497 - 2¹⁶ = 85944802961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85944868417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4762263 + ... + 4780275.

It is an arithmetic number, because the mean of its divisors is an integer number (5224132056).

Almost surely, 2^85944868497 is an apocalyptic number.

It is an amenable number.

85944868497 is a deficient number, since it is larger than the sum of its proper divisors (39434300847).

85944868497 is a wasteful number, since it uses less digits than its factorization.

85944868497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23269 (or 23266 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 72.

The spelling of 85944868497 in words is "eighty-five billion, nine hundred forty-four million, eight hundred sixty-eight thousand, four hundred ninety-seven".