2094607681 has 4 divisors (see below), whose sum is σ = 2096216512. Its totient is φ = 2092998852.

The previous prime is 2094607651. The next prime is 2094607693. The reversal of 2094607681 is 1867064902.

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 2094607681 - 2⁹ = 2094607169 is a prime.

It is a super-2 number, since 2×2094607681² = 8774762674608395522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2094607651) 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, 802461 + ... + 805066.

It is an arithmetic number, because the mean of its divisors is an integer number (524054128).

Almost surely, 2^2094607681 is an apocalyptic number.

It is an amenable number.

2094607681 is a deficient number, since it is larger than the sum of its proper divisors (1608831).

2094607681 is a wasteful number, since it uses less digits than its factorization.

2094607681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608830.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2094607681 is about 45766.8841084905. The cubic root of 2094607681 is about 1279.4821474938.

The spelling of 2094607681 in words is "two billion, ninety-four million, six hundred seven thousand, six hundred eighty-one".