26406010440 has 96 divisors (see below), whose sum is σ = 87028344000. Its totient is φ = 6942418560.

The previous prime is 26406010439. The next prime is 26406010447. The reversal of 26406010440 is 4401060462.

26406010440 is a `hidden beast` number, since 2 + 640 + 6 + 0 + 10 + 4 + 4 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (26406010447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490990 + ... + 542109.

It is an arithmetic number, because the mean of its divisors is an integer number (906545250).

Almost surely, 2^26406010440 is an apocalyptic number.

26406010440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26406010440 is an abundant number, since it is smaller than the sum of its proper divisors (60622333560).

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

26406010440 is a wasteful number, since it uses less digits than its factorization.

26406010440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033187 (or 1033180 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 26406010440 in words is "twenty-six billion, four hundred six million, ten thousand, four hundred forty".