19340882321929 has 9 divisors (see below), whose sum is σ = 22498613205831. Its totient is φ = 16577872746120.

The previous prime is 19340882321863. The next prime is 19340882321947. The reversal of 19340882321929 is 92912328804391.

The square root of 19340882321929 is 4397827.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1342754865529 + 17998127456400 = 1158773^2 + 4242420^2 .

It is not a de Polignac number, because 19340882321929 - 2¹³ = 19340882313737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19340882321129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30470659 + ... + 31098919.

It is an arithmetic number, because the mean of its divisors is an integer number (2499845911759).

Almost surely, 2^{19340882321929} is an apocalyptic number.

19340882321929 is the 4397827-th square number.

19340882321929 is the 2198914-th centered octagonal number.

It is an amenable number.

19340882321929 is a deficient number, since it is larger than the sum of its proper divisors (3157730883902).

19340882321929 is an frugal number, since it uses more digits than its factorization.

19340882321929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256536 (or 628268 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 19340882321929 in words is "nineteen trillion, three hundred forty billion, eight hundred eighty-two million, three hundred twenty-one thousand, nine hundred twenty-nine".