3920799970201 has 3 divisors (see below), whose sum is σ = 3920801950303. Its totient is φ = 3920797990100.

The previous prime is 3920799970193. The next prime is 3920799970207. The reversal of 3920799970201 is 1020799970293.

It is a happy number.

The square root of 3920799970201 is 1980101.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 726072705801 + 3194727264400 = 852099^2 + 1787380^2 .

It is not a de Polignac number, because 3920799970201 - 2³ = 3920799970193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3920799970207) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 990051 + ... + 2970151.

Almost surely, 2^{3920799970201} is an apocalyptic number.

3920799970201 is the 1980101-st square number.

3920799970201 is the 990051-st centered octagonal number.

It is an amenable number.

3920799970201 is a deficient number, since it is larger than the sum of its proper divisors (1980102).

3920799970201 is an frugal number, since it uses more digits than its factorization.

3920799970201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960202 (or 1980101 counting only the distinct ones).

The product of its (nonzero) digits is 3857868, while the sum is 58.

The spelling of 3920799970201 in words is "three trillion, nine hundred twenty billion, seven hundred ninety-nine million, nine hundred seventy thousand, two hundred one".