2143731648730 has 96 divisors (see below), whose sum is σ = 4835749727232. Its totient is φ = 669443788800.

The previous prime is 2143731648701. The next prime is 2143731648749. The reversal of 2143731648730 is 378461373412.

It is a happy number.

It is a super-2 number, since 2×2143731648730² (a number of 25 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 1082031 + ... + 2336290.

It is an arithmetic number, because the mean of its divisors is an integer number (50372392992).

Almost surely, 2^{2143731648730} is an apocalyptic number.

2143731648730 is an abundant number, since it is smaller than the sum of its proper divisors (2692018078502).

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

2143731648730 is a wasteful number, since it uses less digits than its factorization.

2143731648730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418400 (or 3418383 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 2143731648730 in words is "two trillion, one hundred forty-three billion, seven hundred thirty-one million, six hundred forty-eight thousand, seven hundred thirty".