63133445257 has 4 divisors (see below), whose sum is σ = 63356531920. Its totient is φ = 62910358596.

The previous prime is 63133445239. The next prime is 63133445327. The reversal of 63133445257 is 75254433136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63133445257 - 2⁷ = 63133445129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63133445227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111542907 + ... + 111543472.

It is an arithmetic number, because the mean of its divisors is an integer number (15839132980).

Almost surely, 2^63133445257 is an apocalyptic number.

It is an amenable number.

63133445257 is a deficient number, since it is larger than the sum of its proper divisors (223086663).

63133445257 is a wasteful number, since it uses less digits than its factorization.

63133445257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223086662.

The product of its digits is 907200, while the sum is 43.

The spelling of 63133445257 in words is "sixty-three billion, one hundred thirty-three million, four hundred forty-five thousand, two hundred fifty-seven".