10421889408 has 128 divisors (see below), whose sum is σ = 35153280000. Its totient is φ = 2977675776.

The previous prime is 10421889397. The next prime is 10421889427. The reversal of 10421889408 is 80498812401.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191208 + ... + 239591.

It is an arithmetic number, because the mean of its divisors is an integer number (274635000).

Almost surely, 2^10421889408 is an apocalyptic number.

10421889408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10421889408 is an abundant number, since it is smaller than the sum of its proper divisors (24731390592).

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

10421889408 is an equidigital number, since it uses as much as digits as its factorization.

10421889408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430829 (or 430811 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 10421889408 in words is "ten billion, four hundred twenty-one million, eight hundred eighty-nine thousand, four hundred eight".