26720575488 has 336 divisors, whose sum is σ = 82819865856. Its totient is φ = 8599633920.

The previous prime is 26720575487. The next prime is 26720575499. The reversal of 26720575488 is 88457502762.

26720575488 is a `hidden beast` number, since 2 + 6 + 7 + 20 + 575 + 48 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (26720575487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61710120 + ... + 61710552.

It is an arithmetic number, because the mean of its divisors is an integer number (246487696).

Almost surely, 2^26720575488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26720575488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41409932928).

26720575488 is an abundant number, since it is smaller than the sum of its proper divisors (56099290368).

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

26720575488 is an frugal number, since it uses more digits than its factorization.

26720575488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 26720575488 in words is "twenty-six billion, seven hundred twenty million, five hundred seventy-five thousand, four hundred eighty-eight".