192720000001 has 4 divisors (see below), whose sum is σ = 193347752752. Its totient is φ = 192092247252.

The previous prime is 192719999999. The next prime is 192720000023. The reversal of 192720000001 is 100000027291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100000027291 = 383 ⋅261096677.

It is a cyclic number.

It is not a de Polignac number, because 192720000001 - 2¹ = 192719999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192720000091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313875915 + ... + 313876528.

It is an arithmetic number, because the mean of its divisors is an integer number (48336938188).

Almost surely, 2^192720000001 is an apocalyptic number.

It is an amenable number.

192720000001 is a deficient number, since it is larger than the sum of its proper divisors (627752751).

192720000001 is an equidigital number, since it uses as much as digits as its factorization.

192720000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627752750.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 192720000001 its reverse (100000027291), we get a palindrome (292720027292).

The spelling of 192720000001 in words is "one hundred ninety-two billion, seven hundred twenty million, one", and thus it is an aban number.