2153378578 has 32 divisors (see below), whose sum is σ = 3546789120. Its totient is φ = 974455680.

The previous prime is 2153378537. The next prime is 2153378587. The reversal of 2153378578 is 8758733512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659526 + ... + 662782.

It is an arithmetic number, because the mean of its divisors is an integer number (110837160).

Almost surely, 2^2153378578 is an apocalyptic number.

2153378578 is a deficient number, since it is larger than the sum of its proper divisors (1393410542).

2153378578 is a wasteful number, since it uses less digits than its factorization.

2153378578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762.

The product of its digits is 1411200, while the sum is 49.

The square root of 2153378578 is about 46404.5103195799. The cubic root of 2153378578 is about 1291.3385896779.

The spelling of 2153378578 in words is "two billion, one hundred fifty-three million, three hundred seventy-eight thousand, five hundred seventy-eight".