1802080961 has 4 divisors (see below), whose sum is σ = 1814015424. Its totient is φ = 1790146500.

The previous prime is 1802080939. The next prime is 1802080963. The reversal of 1802080961 is 1690802081.

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.

It is a cyclic number.

It is not a de Polignac number, because 1802080961 - 2¹⁴ = 1802064577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1802080963) 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, 5967005 + ... + 5967306.

It is an arithmetic number, because the mean of its divisors is an integer number (453503856).

Almost surely, 2^1802080961 is an apocalyptic number.

It is an amenable number.

1802080961 is a deficient number, since it is larger than the sum of its proper divisors (11934463).

1802080961 is a wasteful number, since it uses less digits than its factorization.

1802080961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11934462.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1802080961 is about 42450.9241477733. The cubic root of 1802080961 is about 1216.9089898852.

The spelling of 1802080961 in words is "one billion, eight hundred two million, eighty thousand, nine hundred sixty-one".