1127714439721 has 9 divisors (see below), whose sum is σ = 1197971886999. Its totient is φ = 1061361305184.

The previous prime is 1127714439707. The next prime is 1127714439737. The reversal of 1127714439721 is 1279344177211.

The square root of 1127714439721 is 1061939.

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., 877978370025 + 249736069696 = 937005^2 + 499736^2 .

It is not a de Polignac number, because 1127714439721 - 2⁵ = 1127714439689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1127714439521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18021730 + ... + 18084196.

Almost surely, 2^{1127714439721} is an apocalyptic number.

1127714439721 is the 1061939-th square number.

1127714439721 is the 530970-th centered octagonal number.

It is an amenable number.

1127714439721 is a deficient number, since it is larger than the sum of its proper divisors (70257447278).

1127714439721 is an frugal number, since it uses more digits than its factorization.

1127714439721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124968 (or 62484 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

Multiplying 1127714439721 by its sum of digits (49), we get a square (55258007546329 = 7433573²).

The spelling of 1127714439721 in words is "one trillion, one hundred twenty-seven billion, seven hundred fourteen million, four hundred thirty-nine thousand, seven hundred twenty-one".