26764388480 has 64 divisors (see below), whose sum is σ = 64308709080. Its totient is φ = 10651361280.

The previous prime is 26764388353. The next prime is 26764388489. The reversal of 26764388480 is 8488346762.

It can be written as a sum of positive squares in 4 ways, for example, as 26055125056 + 709263424 = 161416^2 + 26632^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (26764388489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19940 + ... + 232220.

Almost surely, 2^26764388480 is an apocalyptic number.

26764388480 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 26764388480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32154354540).

26764388480 is an abundant number, since it is smaller than the sum of its proper divisors (37544320600).

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

26764388480 is a wasteful number, since it uses less digits than its factorization.

26764388480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212497 (or 212485 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 26764388480 in words is "twenty-six billion, seven hundred sixty-four million, three hundred eighty-eight thousand, four hundred eighty".