7137143780 has 72 divisors (see below), whose sum is σ = 16349136552. Its totient is φ = 2615847936.

The previous prime is 7137143773. The next prime is 7137143791. The reversal of 7137143780 is 873417317.

It can be written as a sum of positive squares in 12 ways, for example, as 2301888484 + 4835255296 = 47978^2 + 69536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455354 + ... + 470766.

It is an arithmetic number, because the mean of its divisors is an integer number (227071341).

Almost surely, 2^7137143780 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 7137143780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8174568276).

7137143780 is an abundant number, since it is smaller than the sum of its proper divisors (9211992772).

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

7137143780 is a wasteful number, since it uses less digits than its factorization.

7137143780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15585 (or 15570 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 7137143780 is about 84481.6180006041. The cubic root of 7137143780 is about 1925.3431697185.

The spelling of 7137143780 in words is "seven billion, one hundred thirty-seven million, one hundred forty-three thousand, seven hundred eighty".