85183340931 has 16 divisors (see below), whose sum is σ = 135905045920. Its totient is φ = 52420517280.

The previous prime is 85183340897. The next prime is 85183340953. The reversal of 85183340931 is 13904338158.

85183340931 is a `hidden beast` number, since 8 + 518 + 3 + 3 + 40 + 93 + 1 = 666.

It is not a de Polignac number, because 85183340931 - 2⁶ = 85183340867 is a prime.

It is a super-2 number, since 2×85183340931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85183340131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121343440 + ... + 121344141.

It is an arithmetic number, because the mean of its divisors is an integer number (8494065370).

Almost surely, 2^85183340931 is an apocalyptic number.

85183340931 is a deficient number, since it is larger than the sum of its proper divisors (50721704989).

85183340931 is a wasteful number, since it uses less digits than its factorization.

85183340931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242687603 (or 242687597 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 85183340931 in words is "eighty-five billion, one hundred eighty-three million, three hundred forty thousand, nine hundred thirty-one".