85486648131 has 16 divisors (see below), whose sum is σ = 126838511520. Its totient is φ = 56904867360.

The previous prime is 85486648129. The next prime is 85486648153. The reversal of 85486648131 is 13184668458.

85486648131 is a `hidden beast` number, since 8 + 54 + 86 + 6 + 481 + 31 = 666.

It is not a de Polignac number, because 85486648131 - 2¹ = 85486648129 is a prime.

It is a super-2 number, since 2×85486648131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85486648031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377140 + ... + 2412833.

It is an arithmetic number, because the mean of its divisors is an integer number (7927406970).

Almost surely, 2^85486648131 is an apocalyptic number.

85486648131 is a deficient number, since it is larger than the sum of its proper divisors (41351863389).

85486648131 is a wasteful number, since it uses less digits than its factorization.

85486648131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790643 (or 4790637 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 85486648131 in words is "eighty-five billion, four hundred eighty-six million, six hundred forty-eight thousand, one hundred thirty-one".