9139925679361 has 9 divisors (see below), whose sum is σ = 9170352360579. Its totient is φ = 9109599649200.

The previous prime is 9139925679343. The next prime is 9139925679413. The reversal of 9139925679361 is 1639765299319.

The square root of 9139925679361 is 3023231.

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., 226118319361 + 8913807360000 = 475519^2 + 2985600^2 .

It is not a de Polignac number, because 9139925679361 - 2¹³ = 9139925671169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9139925679331) 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, 940219981 + ... + 940229701.

Almost surely, 2^{9139925679361} is an apocalyptic number.

9139925679361 is the 3023231-st square number.

9139925679361 is the 1511616-th centered octagonal number.

It is an amenable number.

9139925679361 is a deficient number, since it is larger than the sum of its proper divisors (30426681218).

9139925679361 is an frugal number, since it uses more digits than its factorization.

9139925679361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064 (or 10032 counting only the distinct ones).

The product of its digits is 148803480, while the sum is 70.

The spelling of 9139925679361 in words is "nine trillion, one hundred thirty-nine billion, nine hundred twenty-five million, six hundred seventy-nine thousand, three hundred sixty-one".