10409343381440 has 56 divisors (see below), whose sum is σ = 25085890544400. Its totient is φ = 4113571831808.

The previous prime is 10409343381427. The next prime is 10409343381443. The reversal of 10409343381440 is 4418334390401.

It is a junction number, because it is equal to n+sod(n) for n = 10409343381391 and 10409343381400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10409343381443) 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, 195932465 + ... + 195985584.

It is an arithmetic number, because the mean of its divisors is an integer number (447962331150).

Almost surely, 2^{10409343381440} is an apocalyptic number.

10409343381440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10409343381440 is an abundant number, since it is smaller than the sum of its proper divisors (14676547162960).

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

10409343381440 is an equidigital number, since it uses as much as digits as its factorization.

10409343381440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391918149 (or 391918139 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 10409343381440 in words is "ten trillion, four hundred nine billion, three hundred forty-three million, three hundred eighty-one thousand, four hundred forty".