126393759361 has 3 divisors (see below), whose sum is σ = 126394114881. Its totient is φ = 126393403842.

The previous prime is 126393759347. The next prime is 126393759383. The reversal of 126393759361 is 163957393621.

The square root of 126393759361 is 355519.

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, and also an emirpimes, since its reverse is a distinct semiprime: 163957393621 = 7 ⋅23422484803.

It is not a de Polignac number, because 126393759361 - 2⁵ = 126393759329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126393729361) 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, 177760 + ... + 533278.

It is an arithmetic number, because the mean of its divisors is an integer number (42131371627).

Almost surely, 2^126393759361 is an apocalyptic number.

126393759361 is the 355519-th square number.

126393759361 is the 177760-th centered octagonal number.

It is an amenable number.

126393759361 is a deficient number, since it is larger than the sum of its proper divisors (355520).

126393759361 is an frugal number, since it uses more digits than its factorization.

126393759361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711038 (or 355519 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 55.

The spelling of 126393759361 in words is "one hundred twenty-six billion, three hundred ninety-three million, seven hundred fifty-nine thousand, three hundred sixty-one".