19197776739372 has 144 divisors (see below), whose sum is σ = 57014051971968. Its totient is φ = 4971638407680.

The previous prime is 19197776739241. The next prime is 19197776739377. The reversal of 19197776739372 is 27393767779191.

It is not an unprimeable number, because it can be changed into a prime (19197776739377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2224018 + ... + 6583449.

It is an arithmetic number, because the mean of its divisors is an integer number (395930916472).

Almost surely, 2^{19197776739372} is an apocalyptic number.

19197776739372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19197776739372 is an abundant number, since it is smaller than the sum of its proper divisors (37816275232596).

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

19197776739372 is a wasteful number, since it uses less digits than its factorization.

19197776739372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807836 (or 8807827 counting only the distinct ones).

The product of its digits is 1323248724, while the sum is 78.

The spelling of 19197776739372 in words is "nineteen trillion, one hundred ninety-seven billion, seven hundred seventy-six million, seven hundred thirty-nine thousand, three hundred seventy-two".