1973830878 has 12 divisors (see below), whose sum is σ = 4276633608. Its totient is φ = 657943620.

The previous prime is 1973830877. The next prime is 1973830907. The reversal of 1973830878 is 8780383791.

1973830878 is a `hidden beast` number, since 197 + 383 + 0 + 8 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973830877) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 54828618 + ... + 54828653.

It is an arithmetic number, because the mean of its divisors is an integer number (356386134).

Almost surely, 2^1973830878 is an apocalyptic number.

1973830878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1973830878 is an abundant number, since it is smaller than the sum of its proper divisors (2302802730).

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

1973830878 is a wasteful number, since it uses less digits than its factorization.

1973830878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109657279 (or 109657276 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 1973830878 is about 44427.8164892222. The cubic root of 1973830878 is about 1254.4017355585.

The spelling of 1973830878 in words is "one billion, nine hundred seventy-three million, eight hundred thirty thousand, eight hundred seventy-eight".