26548840780440 has 128 divisors (see below), whose sum is σ = 88311494488320. Its totient is φ = 6330573043200.

The previous prime is 26548840780409. The next prime is 26548840780463. The reversal of 26548840780440 is 4408704884562.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164778154 + ... + 164939193.

It is an arithmetic number, because the mean of its divisors is an integer number (689933550690).

Almost surely, 2^{26548840780440} is an apocalyptic number.

26548840780440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26548840780440 is an abundant number, since it is smaller than the sum of its proper divisors (61762653707880).

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

26548840780440 is a wasteful number, since it uses less digits than its factorization.

26548840780440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329717433 (or 329717429 counting only the distinct ones).

The product of its (nonzero) digits is 55050240, while the sum is 60.

The spelling of 26548840780440 in words is "twenty-six trillion, five hundred forty-eight billion, eight hundred forty million, seven hundred eighty thousand, four hundred forty".