26609860540 has 24 divisors (see below), whose sum is σ = 57390998112. Its totient is φ = 10356269760.

The previous prime is 26609860477. The next prime is 26609860553. The reversal of 26609860540 is 4506890662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17978896 + ... + 17980375.

It is an arithmetic number, because the mean of its divisors is an integer number (2391291588).

Almost surely, 2^26609860540 is an apocalyptic number.

26609860540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26609860540 is an abundant number, since it is smaller than the sum of its proper divisors (30781137572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26609860540 is a wasteful number, since it uses less digits than its factorization.

26609860540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35959317 (or 35959315 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 26609860540 in words is "twenty-six billion, six hundred nine million, eight hundred sixty thousand, five hundred forty".