1143139198464 has 160 divisors (see below), whose sum is σ = 3384546396000. Its totient is φ = 380959137792.

The previous prime is 1143139198447. The next prime is 1143139198493. The reversal of 1143139198464 is 4648919313411.

1143139198464 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 1 + 3 + 91 + 98 + 464 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1143139198464.

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, 94398042 + ... + 94410150.

It is an arithmetic number, because the mean of its divisors is an integer number (21153414975).

Almost surely, 2^{1143139198464} 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 1143139198464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1692273198000).

1143139198464 is an abundant number, since it is smaller than the sum of its proper divisors (2241407197536).

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

1143139198464 is an equidigital number, since it uses as much as digits as its factorization.

1143139198464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18965 (or 18943 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 1143139198464 in words is "one trillion, one hundred forty-three billion, one hundred thirty-nine million, one hundred ninety-eight thousand, four hundred sixty-four".