5445890331840 has 896 divisors, whose sum is σ = 22204909209600. Its totient is φ = 1230765096960.

The previous prime is 5445890331829. The next prime is 5445890331851. The reversal of 5445890331840 is 481330985445.

It is a happy number.

5445890331840 is a `hidden beast` number, since 5 + 4 + 4 + 589 + 0 + 3 + 3 + 18 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (5445890331829) and next prime (5445890331851).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2328297391 + ... + 2328299729.

Almost surely, 2^{5445890331840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5445890331840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11102454604800).

5445890331840 is an abundant number, since it is smaller than the sum of its proper divisors (16759018877760).

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

5445890331840 is a wasteful number, since it uses less digits than its factorization.

5445890331840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 5445890331840 in words is "five trillion, four hundred forty-five billion, eight hundred ninety million, three hundred thirty-one thousand, eight hundred forty".