8457561433 has 2 divisors, whose sum is σ = 8457561434. Its totient is φ = 8457561432.

The previous prime is 8457561401. The next prime is 8457561461. The reversal of 8457561433 is 3341657548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7965919504 + 491641929 = 89252^2 + 22173^2 .

It is a cyclic number.

It is not a de Polignac number, because 8457561433 - 2⁵ = 8457561401 is a prime.

It is not a weakly prime, because it can be changed into another prime (8457561493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228780716 + 4228780717.

It is an arithmetic number, because the mean of its divisors is an integer number (4228780717).

Almost surely, 2^8457561433 is an apocalyptic number.

It is an amenable number.

8457561433 is a deficient number, since it is larger than the sum of its proper divisors (1).

8457561433 is an equidigital number, since it uses as much as digits as its factorization.

8457561433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 46.

The square root of 8457561433 is about 91965.0011308650. The cubic root of 8457561433 is about 2037.4254200210.

The spelling of 8457561433 in words is "eight billion, four hundred fifty-seven million, five hundred sixty-one thousand, four hundred thirty-three".