26460897280 has 60 divisors (see below), whose sum is σ = 63504412020. Its totient is φ = 10584326144.

The previous prime is 26460897233. The next prime is 26460897301. The reversal of 26460897280 is 8279806462.

It can be written as a sum of positive squares in 2 ways, for example, as 17146331136 + 9314566144 = 130944^2 + 96512^2 .

It is a super-2 number, since 2×26460897280² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79585 + ... + 243424.

It is an arithmetic number, because the mean of its divisors is an integer number (1058406867).

Almost surely, 2^26460897280 is an apocalyptic number.

26460897280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26460897280 is an abundant number, since it is smaller than the sum of its proper divisors (37043514740).

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

26460897280 is an frugal number, since it uses more digits than its factorization.

26460897280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323042 (or 323016 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 26460897280 in words is "twenty-six billion, four hundred sixty million, eight hundred ninety-seven thousand, two hundred eighty".