2046642445957 has 2 divisors, whose sum is σ = 2046642445958. Its totient is φ = 2046642445956.

The previous prime is 2046642445951. The next prime is 2046642446041. The reversal of 2046642445957 is 7595442466402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299894136641 + 746748309316 = 1140129^2 + 864146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2046642445957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2046642445951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023321222978 + 1023321222979.

It is an arithmetic number, because the mean of its divisors is an integer number (1023321222979).

Almost surely, 2^{2046642445957} is an apocalyptic number.

It is an amenable number.

2046642445957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046642445957 is an equidigital number, since it uses as much as digits as its factorization.

2046642445957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58060800, while the sum is 58.

The spelling of 2046642445957 in words is "two trillion, forty-six billion, six hundred forty-two million, four hundred forty-five thousand, nine hundred fifty-seven".