26605093440 has 56 divisors (see below), whose sum is σ = 84471174720. Its totient is φ = 7094691328.

The previous prime is 26605093421. The next prime is 26605093441. The reversal of 26605093440 is 4439050662.

It is a super-2 number, since 2×26605093440² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26605093441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13855860 + ... + 13857779.

Almost surely, 2^26605093440 is an apocalyptic number.

26605093440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26605093440 is an abundant number, since it is smaller than the sum of its proper divisors (57866081280).

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

26605093440 is a wasteful number, since it uses less digits than its factorization.

26605093440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27713659 (or 27713649 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 26605093440 in words is "twenty-six billion, six hundred five million, ninety-three thousand, four hundred forty".