9146462997840 has 320 divisors, whose sum is σ = 34806248448000. Its totient is φ = 1980587137536.

The previous prime is 9146462997811. The next prime is 9146462997913. The reversal of 9146462997840 is 487992646419.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1359832 + ... + 4487991.

It is an arithmetic number, because the mean of its divisors is an integer number (108769526400).

Almost surely, 2^{9146462997840} 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 9146462997840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17403124224000).

9146462997840 is an abundant number, since it is smaller than the sum of its proper divisors (25659785450160).

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

9146462997840 is a wasteful number, since it uses less digits than its factorization.

9146462997840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847879 (or 5847859 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 69.

The spelling of 9146462997840 in words is "nine trillion, one hundred forty-six billion, four hundred sixty-two million, nine hundred ninety-seven thousand, eight hundred forty".