85975862949 has 6 divisors (see below), whose sum is σ = 124187357606. Its totient is φ = 57317241960.

The previous prime is 85975862831. The next prime is 85975862953. The reversal of 85975862949 is 94926857958.

85975862949 is a `hidden beast` number, since 8 + 597 + 5 + 8 + 6 + 29 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61093008900 + 24882854049 = 247170^2 + 157743^2 .

It is not a de Polignac number, because 85975862949 - 2¹⁵ = 85975830181 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 (85975862969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4776436822 + ... + 4776436839.

Almost surely, 2^85975862949 is an apocalyptic number.

It is an amenable number.

85975862949 is a deficient number, since it is larger than the sum of its proper divisors (38211494657).

85975862949 is a wasteful number, since it uses less digits than its factorization.

85975862949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552873667 (or 9552873664 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

The spelling of 85975862949 in words is "eighty-five billion, nine hundred seventy-five million, eight hundred sixty-two thousand, nine hundred forty-nine".