9071697140 has 48 divisors (see below), whose sum is σ = 20845387584. Its totient is φ = 3288806400.

The previous prime is 9071697137. The next prime is 9071697149. The reversal of 9071697140 is 417961709.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 9071697091 and 9071697100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9071697149) 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, 10532 + ... + 135108.

It is an arithmetic number, because the mean of its divisors is an integer number (434278908).

Almost surely, 2^9071697140 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 9071697140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10422693792).

9071697140 is an abundant number, since it is smaller than the sum of its proper divisors (11773690444).

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

9071697140 is a wasteful number, since it uses less digits than its factorization.

9071697140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124928 (or 124926 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 9071697140 is about 95245.4573194963. The cubic root of 9071697140 is about 2085.5927779119.

The spelling of 9071697140 in words is "nine billion, seventy-one million, six hundred ninety-seven thousand, one hundred forty".