1973578368 has 32 divisors (see below), whose sum is σ = 5242318560. Its totient is φ = 657859328.

The previous prime is 1973578357. The next prime is 1973578381. The reversal of 1973578368 is 8638753791.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 2569380 + ... + 2570147.

It is an arithmetic number, because the mean of its divisors is an integer number (163822455).

Almost surely, 2^1973578368 is an apocalyptic number.

It is an amenable number.

1973578368 is an abundant number, since it is smaller than the sum of its proper divisors (3268740192).

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

1973578368 is an equidigital number, since it uses as much as digits as its factorization.

1973578368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139544 (or 5139532 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 1973578368 is about 44424.9745976292. The cubic root of 1973578368 is about 1254.3482418687.

The spelling of 1973578368 in words is "one billion, nine hundred seventy-three million, five hundred seventy-eight thousand, three hundred sixty-eight".