2134943578 has 16 divisors (see below), whose sum is σ = 3241184616. Its totient is φ = 1054609920.

The previous prime is 2134943563. The next prime is 2134943597. The reversal of 2134943578 is 8753494312.

It can be written as a sum of positive squares in 4 ways, for example, as 450415729 + 1684527849 = 21223^2 + 41043^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55648 + ... + 85828.

Almost surely, 2^2134943578 is an apocalyptic number.

2134943578 is a deficient number, since it is larger than the sum of its proper divisors (1106241038).

2134943578 is a wasteful number, since it uses less digits than its factorization.

2134943578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30609.

The product of its digits is 725760, while the sum is 46.

The square root of 2134943578 is about 46205.4496569398. The cubic root of 2134943578 is about 1287.6429884615.

The spelling of 2134943578 in words is "two billion, one hundred thirty-four million, nine hundred forty-three thousand, five hundred seventy-eight".