26430761889 has 64 divisors (see below), whose sum is σ = 48254976000. Its totient is φ = 13959319680.

The previous prime is 26430761887. The next prime is 26430761893. The reversal of 26430761889 is 98816703462.

26430761889 is a `hidden beast` number, since 26 + 430 + 7 + 6 + 188 + 9 = 666.

It is not a de Polignac number, because 26430761889 - 2¹ = 26430761887 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26430761881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57472 + ... + 236990.

It is an arithmetic number, because the mean of its divisors is an integer number (753984000).

Almost surely, 2^26430761889 is an apocalyptic number.

It is an amenable number.

26430761889 is a deficient number, since it is larger than the sum of its proper divisors (21824214111).

26430761889 is a wasteful number, since it uses less digits than its factorization.

26430761889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179595 (or 179589 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 26430761889 in words is "twenty-six billion, four hundred thirty million, seven hundred sixty-one thousand, eight hundred eighty-nine".