2046642643 has 2 divisors, whose sum is σ = 2046642644. Its totient is φ = 2046642642.

The previous prime is 2046642641. The next prime is 2046642667. The reversal of 2046642643 is 3462466402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2046642643 - 2¹ = 2046642641 is a prime.

It is a super-2 number, since 2×2046642643² = 8377492216292050898, which contains 22 as substring.

Together with 2046642641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2046642641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023321321 + 1023321322.

It is an arithmetic number, because the mean of its divisors is an integer number (1023321322).

Almost surely, 2^2046642643 is an apocalyptic number.

2046642643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046642643 is an equidigital number, since it uses as much as digits as its factorization.

2046642643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

The square root of 2046642643 is about 45239.8346924478. The cubic root of 2046642643 is about 1269.6402235898.

The spelling of 2046642643 in words is "two billion, forty-six million, six hundred forty-two thousand, six hundred forty-three".