7507747960729 has 3 divisors (see below), whose sum is σ = 7507750700757. Its totient is φ = 7507745220702.

The previous prime is 7507747960721. The next prime is 7507747960733. The reversal of 7507747960729 is 9270697477057.

The square root of 7507747960729 is 2740027.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 7507747960729 - 2³ = 7507747960721 is a prime.

It is a super-2 number, since 2×7507747960729² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7507747960721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1370014 + ... + 4110040.

It is an arithmetic number, because the mean of its divisors is an integer number (2502583566919).

Almost surely, 2^{7507747960729} is an apocalyptic number.

7507747960729 is the 2740027-th square number.

7507747960729 is the 1370014-th centered octagonal number.

It is an amenable number.

7507747960729 is a deficient number, since it is larger than the sum of its proper divisors (2740028).

7507747960729 is an frugal number, since it uses more digits than its factorization.

7507747960729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480054 (or 2740027 counting only the distinct ones).

The product of its (nonzero) digits is 326728080, while the sum is 70.

The spelling of 7507747960729 in words is "seven trillion, five hundred seven billion, seven hundred forty-seven million, nine hundred sixty thousand, seven hundred twenty-nine".