8398451005440 has 192 divisors, whose sum is σ = 27493334668800. Its totient is φ = 2187503173632.

The previous prime is 8398451005423. The next prime is 8398451005447. The reversal of 8398451005440 is 445001548938.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×8398451005440² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398451005447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857960 + ... + 4499879.

It is an arithmetic number, because the mean of its divisors is an integer number (143194451400).

Almost surely, 2^{8398451005440} is an apocalyptic number.

8398451005440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8398451005440 is an abundant number, since it is smaller than the sum of its proper divisors (19094883663360).

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

8398451005440 is a wasteful number, since it uses less digits than its factorization.

8398451005440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357912 (or 6357892 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 8398451005440 in words is "eight trillion, three hundred ninety-eight billion, four hundred fifty-one million, five thousand, four hundred forty".