1880920801 has 4 divisors (see below), whose sum is σ = 1899182272. Its totient is φ = 1862659332.

The previous prime is 1880920799. The next prime is 1880920807. The reversal of 1880920801 is 1080290881.

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: 1080290881 = 2357 ⋅458333.

It is a cyclic number.

It is not a de Polignac number, because 1880920801 - 2¹ = 1880920799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1880920807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9130581 + ... + 9130786.

It is an arithmetic number, because the mean of its divisors is an integer number (474795568).

Almost surely, 2^1880920801 is an apocalyptic number.

It is an amenable number.

1880920801 is a deficient number, since it is larger than the sum of its proper divisors (18261471).

1880920801 is a wasteful number, since it uses less digits than its factorization.

1880920801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18261470.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 1880920801 is about 43369.5838232280. The cubic root of 1880920801 is about 1234.4026245431.

The spelling of 1880920801 in words is "one billion, eight hundred eighty million, nine hundred twenty thousand, eight hundred one".