472426453208557 has 2 divisors, whose sum is σ = 472426453208558. Its totient is φ = 472426453208556.

The previous prime is 472426453208543. The next prime is 472426453208569. The reversal of 472426453208557 is 755802354624274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368746222050756 + 103680231157801 = 19202766^2 + 10182349^2 .

It is a cyclic number.

It is not a de Polignac number, because 472426453208557 - 2⁷ = 472426453208429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472426453208057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236213226604278 + 236213226604279.

It is an arithmetic number, because the mean of its divisors is an integer number (236213226604279).

Almost surely, 2^{472426453208557} is an apocalyptic number.

It is an amenable number.

472426453208557 is a deficient number, since it is larger than the sum of its proper divisors (1).

472426453208557 is an equidigital number, since it uses as much as digits as its factorization.

472426453208557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584000, while the sum is 64.

The spelling of 472426453208557 in words is "four hundred seventy-two trillion, four hundred twenty-six billion, four hundred fifty-three million, two hundred eight thousand, five hundred fifty-seven".