7706547988489 has 9 divisors (see below), whose sum is σ = 8964782510151. Its totient is φ = 6605595905160.

The previous prime is 7706547988483. The next prime is 7706547988499. The reversal of 7706547988489 is 9848897456077.

The square root of 7706547988489 is 2776067.

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

It can be written as a sum of positive squares in only one way, i.e., 2555736176889 + 5150811811600 = 1598667^2 + 2269540^2 .

It is not a de Polignac number, because 7706547988489 - 2¹⁷ = 7706547857417 is a prime.

It is a super-3 number, since 3×7706547988489³ (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 (7706547988483) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19234179 + ... + 19630759.

Almost surely, 2^{7706547988489} is an apocalyptic number.

7706547988489 is the 2776067-th square number.

7706547988489 is the 1388034-th centered octagonal number.

It is an amenable number.

7706547988489 is a deficient number, since it is larger than the sum of its proper divisors (1258234521662).

7706547988489 is an frugal number, since it uses more digits than its factorization.

7706547988489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793176 (or 396588 counting only the distinct ones).

The product of its (nonzero) digits is 6827950080, while the sum is 82.

The spelling of 7706547988489 in words is "seven trillion, seven hundred six billion, five hundred forty-seven million, nine hundred eighty-eight thousand, four hundred eighty-nine".