26469709440 has 256 divisors, whose sum is σ = 86302869120. Its totient is φ = 6898171904.

The previous prime is 26469709423. The next prime is 26469709471. The reversal of 26469709440 is 4490796462.

It is a super-2 number, since 2×26469709440² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47521642 + ... + 47522198.

Almost surely, 2^26469709440 is an apocalyptic number.

26469709440 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 26469709440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43151434560).

26469709440 is an abundant number, since it is smaller than the sum of its proper divisors (59833159680).

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

26469709440 is a wasteful number, since it uses less digits than its factorization.

26469709440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 26469709440 in words is "twenty-six billion, four hundred sixty-nine million, seven hundred nine thousand, four hundred forty".