2670857217 has 24 divisors (see below), whose sum is σ = 4410579264. Its totient is φ = 1525669344.

The previous prime is 2670857191. The next prime is 2670857239. The reversal of 2670857217 is 7127580762.

2670857217 is a `hidden beast` number, since 2 + 6 + 70 + 8 + 572 + 1 + 7 = 666.

It is not a de Polignac number, because 2670857217 - 2¹⁰ = 2670856193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2670853217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237238 + ... + 248240.

It is an arithmetic number, because the mean of its divisors is an integer number (183774136).

Almost surely, 2^2670857217 is an apocalyptic number.

It is an amenable number.

2670857217 is a deficient number, since it is larger than the sum of its proper divisors (1739722047).

2670857217 is a wasteful number, since it uses less digits than its factorization.

2670857217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14869 (or 14866 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 2670857217 is about 51680.3368506824. The cubic root of 2670857217 is about 1387.4485598655.

The spelling of 2670857217 in words is "two billion, six hundred seventy million, eight hundred fifty-seven thousand, two hundred seventeen".