19711879201 has 27 divisors (see below), whose sum is σ = 23730365457. Its totient is φ = 16325595720.

The previous prime is 19711879189. The next prime is 19711879207. The reversal of 19711879201 is 10297811791.

The square root of 19711879201 is 140399.

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

It is not a de Polignac number, because 19711879201 - 2¹¹ = 19711877153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19711879207) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 30466260 + ... + 30466906.

Almost surely, 2^19711879201 is an apocalyptic number.

19711879201 is the 140399-th square number.

19711879201 is the 70200-th centered octagonal number.

It is an amenable number.

19711879201 is a deficient number, since it is larger than the sum of its proper divisors (4018486256).

19711879201 is an frugal number, since it uses more digits than its factorization.

19711879201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 46.

The spelling of 19711879201 in words is "nineteen billion, seven hundred eleven million, eight hundred seventy-nine thousand, two hundred one".