26488868240 has 80 divisors (see below), whose sum is σ = 68641499520. Its totient is φ = 9447413760.

The previous prime is 26488868239. The next prime is 26488868261. The reversal of 26488868240 is 4286888462.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486716 + ... + 538395.

It is an arithmetic number, because the mean of its divisors is an integer number (858018744).

Almost surely, 2^26488868240 is an apocalyptic number.

26488868240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26488868240 is an abundant number, since it is smaller than the sum of its proper divisors (42152631280).

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

26488868240 is a wasteful number, since it uses less digits than its factorization.

26488868240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025160 (or 1025154 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 26488868240 in words is "twenty-six billion, four hundred eighty-eight million, eight hundred sixty-eight thousand, two hundred forty".