2047665794 has 8 divisors (see below), whose sum is σ = 3072118908. Its totient is φ = 1023626160.

The previous prime is 2047665787. The next prime is 2047665797. The reversal of 2047665794 is 4975667402.

It can be written as a sum of positive squares in 2 ways, for example, as 1918002025 + 129663769 = 43795^2 + 11387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2047665797) 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, 90677 + ... + 110984.

Almost surely, 2^2047665794 is an apocalyptic number.

2047665794 is a deficient number, since it is larger than the sum of its proper divisors (1024453114).

2047665794 is a wasteful number, since it uses less digits than its factorization.

2047665794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206740.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The square root of 2047665794 is about 45251.1413557713. The cubic root of 2047665794 is about 1269.8517598276.

The spelling of 2047665794 in words is "two billion, forty-seven million, six hundred sixty-five thousand, seven hundred ninety-four".