26023819761 has 9 divisors (see below), whose sum is σ = 37590660939. Its totient is φ = 17348890536.

The previous prime is 26023819753. The next prime is 26023819763. The reversal of 26023819761 is 16791832062.

The square root of 26023819761 is 161319.

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

26023819761 is a `hidden beast` number, since 2 + 602 + 38 + 1 + 9 + 7 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18059328225 + 7964491536 = 134385^2 + 89244^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 26023819761 - 2³ = 26023819753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26023819763) 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, 457071 + ... + 510843.

Almost surely, 2^26023819761 is an apocalyptic number.

26023819761 is the 161319-th square number.

26023819761 is the 80660-th centered octagonal number.

It is an amenable number.

26023819761 is a deficient number, since it is larger than the sum of its proper divisors (11566841178).

26023819761 is an frugal number, since it uses more digits than its factorization.

26023819761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107552 (or 53776 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 26023819761 in words is "twenty-six billion, twenty-three million, eight hundred nineteen thousand, seven hundred sixty-one".