7131040037040 has 160 divisors (see below), whose sum is σ = 22359040804800. Its totient is φ = 1879871488000.

The previous prime is 7131040036993. The next prime is 7131040037047. The reversal of 7131040037040 is 407300401317.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7131040036989 and 7131040037007.

It is not an unprimeable number, because it can be changed into a prime (7131040037047) 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, 117471016 + ... + 117531704.

It is an arithmetic number, because the mean of its divisors is an integer number (139744005030).

Almost surely, 2^{7131040037040} 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 7131040037040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11179520402400).

7131040037040 is an abundant number, since it is smaller than the sum of its proper divisors (15228000767760).

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

7131040037040 is a wasteful number, since it uses less digits than its factorization.

7131040037040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66295 (or 66289 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

Adding to 7131040037040 its reverse (407300401317), we get a palindrome (7538340438357).

The spelling of 7131040037040 in words is "seven trillion, one hundred thirty-one billion, forty million, thirty-seven thousand, forty".