2102746217 has 16 divisors (see below), whose sum is σ = 2476873728. Its totient is φ = 1759889280.

The previous prime is 2102746193. The next prime is 2102746229. The reversal of 2102746217 is 7126472012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102746217 is a prime.

It is a super-2 number, since 2×2102746217² = 8843083306215622178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102746237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35573 + ... + 73965.

It is an arithmetic number, because the mean of its divisors is an integer number (154804608).

Almost surely, 2^2102746217 is an apocalyptic number.

It is an amenable number.

2102746217 is a deficient number, since it is larger than the sum of its proper divisors (374127511).

2102746217 is a wasteful number, since it uses less digits than its factorization.

2102746217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38800.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2102746217 is about 45855.7108439069. The cubic root of 2102746217 is about 1281.1371358460.

The spelling of 2102746217 in words is "two billion, one hundred two million, seven hundred forty-six thousand, two hundred seventeen".