26305062253440 has 64 divisors (see below), whose sum is σ = 83847385938960. Its totient is φ = 7014683267072.

The previous prime is 26305062253403. The next prime is 26305062253487. The reversal of 26305062253440 is 4435226050362.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 26305062253392 and 26305062253401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6850274709 + ... + 6850278548.

Almost surely, 2^{26305062253440} is an apocalyptic number.

26305062253440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26305062253440 is an abundant number, since it is smaller than the sum of its proper divisors (57542323685520).

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

26305062253440 is a wasteful number, since it uses less digits than its factorization.

26305062253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13700553279 (or 13700553267 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 26305062253440 in words is "twenty-six trillion, three hundred five billion, sixty-two million, two hundred fifty-three thousand, four hundred forty".