8373001285440 has 1120 divisors, whose sum is σ = 33277268496384. Its totient is φ = 1981006295040.

The previous prime is 8373001285361. The next prime is 8373001285483. The reversal of 8373001285440 is 445821003738.

8373001285440 is a `hidden beast` number, since 83 + 7 + 3 + 0 + 0 + 1 + 28 + 544 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6526111039 + ... + 6526112321.

Almost surely, 2^{8373001285440} is an apocalyptic number.

8373001285440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8373001285440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16638634248192).

8373001285440 is an abundant number, since it is smaller than the sum of its proper divisors (24904267210944).

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

8373001285440 is a wasteful number, since it uses less digits than its factorization.

8373001285440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 8373001285440 in words is "eight trillion, three hundred seventy-three billion, one million, two hundred eighty-five thousand, four hundred forty".