26738463361 has 9 divisors (see below), whose sum is σ = 27022512643. Its totient is φ = 26457374200.

The previous prime is 26738463341. The next prime is 26738463517. The reversal of 26738463361 is 16336483762.

The square root of 26738463361 is 163519.

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., 25689998961 + 1048464400 = 160281^2 + 32380^2 .

It is not a de Polignac number, because 26738463361 - 2²³ = 26730074753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26738463341) 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, 16514610 + ... + 16516228.

Almost surely, 2^26738463361 is an apocalyptic number.

26738463361 is the 163519-th square number.

26738463361 is the 81760-th centered octagonal number.

It is an amenable number.

26738463361 is a deficient number, since it is larger than the sum of its proper divisors (284049282).

26738463361 is an frugal number, since it uses more digits than its factorization.

26738463361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 1720 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 49.

Multiplying 26738463361 by its sum of digits (49), we get a square (1310184704689 = 1144633²).

The spelling of 26738463361 in words is "twenty-six billion, seven hundred thirty-eight million, four hundred sixty-three thousand, three hundred sixty-one".