2094480781 has 2 divisors, whose sum is σ = 2094480782. Its totient is φ = 2094480780.

The previous prime is 2094480779. The next prime is 2094480799. The reversal of 2094480781 is 1870844902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1112222500 + 982258281 = 33350^2 + 31341^2 .

It is a cyclic number.

It is not a de Polignac number, because 2094480781 - 2¹ = 2094480779 is a prime.

It is a super-2 number, since 2×2094480781² = 8773699483956739922, which contains 22 as substring.

Together with 2094480779, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2094480701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1047240390 + 1047240391.

It is an arithmetic number, because the mean of its divisors is an integer number (1047240391).

Almost surely, 2^2094480781 is an apocalyptic number.

It is an amenable number.

2094480781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2094480781 is an equidigital number, since it uses as much as digits as its factorization.

2094480781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 2094480781 is about 45765.4977138892. The cubic root of 2094480781 is about 1279.4563081978.

The spelling of 2094480781 in words is "two billion, ninety-four million, four hundred eighty thousand, seven hundred eighty-one".