85538747140 has 96 divisors (see below), whose sum is σ = 224087609088. Its totient is φ = 26645760000.

The previous prime is 85538747093. The next prime is 85538747143. The reversal of 85538747140 is 4174783558.

It is not an unprimeable number, because it can be changed into a prime (85538747143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2758120 + ... + 2788960.

It is an arithmetic number, because the mean of its divisors is an integer number (2334245928).

Almost surely, 2^85538747140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85538747140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112043804544).

85538747140 is an abundant number, since it is smaller than the sum of its proper divisors (138548861948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85538747140 is a wasteful number, since it uses less digits than its factorization.

85538747140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32669 (or 32667 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 85538747140 in words is "eighty-five billion, five hundred thirty-eight million, seven hundred forty-seven thousand, one hundred forty".