26265152512780 has 24 divisors (see below), whose sum is σ = 58401339117408. Its totient is φ = 9888057416448.

The previous prime is 26265152512751. The next prime is 26265152512787. The reversal of 26265152512780 is 8721525156262.

It is not an unprimeable number, because it can be changed into a prime (26265152512787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38625223944 + ... + 38625224623.

It is an arithmetic number, because the mean of its divisors is an integer number (2433389129892).

Almost surely, 2^{26265152512780} is an apocalyptic number.

26265152512780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26265152512780 is an abundant number, since it is smaller than the sum of its proper divisors (32136186604628).

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

26265152512780 is a wasteful number, since it uses less digits than its factorization.

26265152512780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77250448593 (or 77250448591 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 26265152512780 in words is "twenty-six trillion, two hundred sixty-five billion, one hundred fifty-two million, five hundred twelve thousand, seven hundred eighty".