7140797139529 has 27 divisors (see below), whose sum is σ = 7375422640053. Its totient is φ = 6913585694400.

The previous prime is 7140797139373. The next prime is 7140797139559. The reversal of 7140797139529 is 9259317970417.

It is a happy number.

The square root of 7140797139529 is 2672227.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6290440205625 + 850356933904 = 2508075^2 + 922148^2 .

It is not a de Polignac number, because 7140797139529 - 2³⁷ = 7003358186057 is a prime.

It is a super-3 number, since 3×7140797139529³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7140797139559) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11573414829 + ... + 11573415445.

Almost surely, 2^{7140797139529} is an apocalyptic number.

7140797139529 is the 2672227-th square number.

7140797139529 is the 1336114-th centered octagonal number.

It is an amenable number.

7140797139529 is a deficient number, since it is larger than the sum of its proper divisors (234625500524).

7140797139529 is an frugal number, since it uses more digits than its factorization.

7140797139529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 64.

Multiplying 7140797139529 by its sum of digits (64), we get a square (457011016929856 = 21377816²).

The spelling of 7140797139529 in words is "seven trillion, one hundred forty billion, seven hundred ninety-seven million, one hundred thirty-nine thousand, five hundred twenty-nine".