19773908120 has 32 divisors (see below), whose sum is σ = 44515548000. Its totient is φ = 7905251328.

The previous prime is 19773908111. The next prime is 19773908123. The reversal of 19773908120 is 2180937791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19773908123) 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 7 ways as a sum of consecutive naturals, for example, 59945 + ... + 207704.

It is an arithmetic number, because the mean of its divisors is an integer number (1391110875).

Almost surely, 2^19773908120 is an apocalyptic number.

19773908120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19773908120 is an abundant number, since it is smaller than the sum of its proper divisors (24741639880).

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

19773908120 is a wasteful number, since it uses less digits than its factorization.

19773908120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269507 (or 269503 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 19773908120 in words is "nineteen billion, seven hundred seventy-three million, nine hundred eight thousand, one hundred twenty".