457888782661 has 2 divisors, whose sum is σ = 457888782662. Its totient is φ = 457888782660.

The previous prime is 457888782613. The next prime is 457888782671. The reversal of 457888782661 is 166287888754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260824704100 + 197064078561 = 510710^2 + 443919^2 .

It is a cyclic number.

It is not a de Polignac number, because 457888782661 - 2⁹ = 457888782149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457888782601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228944391330 + 228944391331.

It is an arithmetic number, because the mean of its divisors is an integer number (228944391331).

Almost surely, 2^457888782661 is an apocalyptic number.

It is an amenable number.

457888782661 is a deficient number, since it is larger than the sum of its proper divisors (1).

457888782661 is an equidigital number, since it uses as much as digits as its factorization.

457888782661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 289013760, while the sum is 70.

The spelling of 457888782661 in words is "four hundred fifty-seven billion, eight hundred eighty-eight million, seven hundred eighty-two thousand, six hundred sixty-one".