85238187471 has 6 divisors (see below), whose sum is σ = 123121826360. Its totient is φ = 56825458308.

The previous prime is 85238187457. The next prime is 85238187499. The reversal of 85238187471 is 17478183258.

It is not a de Polignac number, because 85238187471 - 2⁵ = 85238187439 is a prime.

It is a super-3 number, since 3×85238187471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85238187401) 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, 4735454851 + ... + 4735454868.

Almost surely, 2^85238187471 is an apocalyptic number.

85238187471 is a deficient number, since it is larger than the sum of its proper divisors (37883638889).

85238187471 is a wasteful number, since it uses less digits than its factorization.

85238187471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470909725 (or 9470909722 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The spelling of 85238187471 in words is "eighty-five billion, two hundred thirty-eight million, one hundred eighty-seven thousand, four hundred seventy-one".