26758265780 has 96 divisors (see below), whose sum is σ = 60774416640. Its totient is φ = 9865856000.

The previous prime is 26758265749. The next prime is 26758265791. The reversal of 26758265780 is 8756285762.

It is a happy number.

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, 8229155 + ... + 8232405.

It is an arithmetic number, because the mean of its divisors is an integer number (633066840).

Almost surely, 2^26758265780 is an apocalyptic number.

26758265780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26758265780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30387208320).

26758265780 is an abundant number, since it is smaller than the sum of its proper divisors (34016150860).

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

26758265780 is a wasteful number, since it uses less digits than its factorization.

26758265780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 26758265780 in words is "twenty-six billion, seven hundred fifty-eight million, two hundred sixty-five thousand, seven hundred eighty".