2143189268640 has 192 divisors, whose sum is σ = 8572757195520. Its totient is φ = 489871825920.

The previous prime is 2143189268581. The next prime is 2143189268651. The reversal of 2143189268640 is 468629813412.

2143189268640 is a `hidden beast` number, since 2 + 1 + 4 + 318 + 9 + 268 + 64 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35406091 + ... + 35466570.

It is an arithmetic number, because the mean of its divisors is an integer number (44649777060).

Almost surely, 2^{2143189268640} is an apocalyptic number.

2143189268640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143189268640 is an abundant number, since it is smaller than the sum of its proper divisors (6429567926880).

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

2143189268640 is a wasteful number, since it uses less digits than its factorization.

2143189268640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70872692 (or 70872678 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 2143189268640 in words is "two trillion, one hundred forty-three billion, one hundred eighty-nine million, two hundred sixty-eight thousand, six hundred forty".