26288828380 has 12 divisors (see below), whose sum is σ = 55206539640. Its totient is φ = 10515531344.

The previous prime is 26288828327. The next prime is 26288828383. The reversal of 26288828380 is 8382888262.

It is a super-2 number, since 2×26288828380² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26288828383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657220690 + ... + 657220729.

It is an arithmetic number, because the mean of its divisors is an integer number (4600544970).

Almost surely, 2^26288828380 is an apocalyptic number.

26288828380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26288828380 is an abundant number, since it is smaller than the sum of its proper divisors (28917711260).

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

26288828380 is a wasteful number, since it uses less digits than its factorization.

26288828380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314441428 (or 1314441426 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 55.

The spelling of 26288828380 in words is "twenty-six billion, two hundred eighty-eight million, eight hundred twenty-eight thousand, three hundred eighty".