19776077232 has 40 divisors (see below), whose sum is σ = 51150528240. Its totient is φ = 6583983360.

The previous prime is 19776077231. The next prime is 19776077257. The reversal of 19776077232 is 23277067791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19776077231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211507 + ... + 290322.

It is an arithmetic number, because the mean of its divisors is an integer number (1278763206).

Almost surely, 2^19776077232 is an apocalyptic number.

19776077232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19776077232 is an abundant number, since it is smaller than the sum of its proper divisors (31374451008).

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

19776077232 is a wasteful number, since it uses less digits than its factorization.

19776077232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502661 (or 502655 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 51.

The spelling of 19776077232 in words is "nineteen billion, seven hundred seventy-six million, seventy-seven thousand, two hundred thirty-two".