457705236136 has 8 divisors (see below), whose sum is σ = 858197317770. Its totient is φ = 228852618064.

The previous prime is 457705236097. The next prime is 457705236137. The reversal of 457705236136 is 631632507754.

It can be written as a sum of positive squares in only one way, i.e., 413441284036 + 44263952100 = 642994^2 + 210390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 457705236136.

It is not an unprimeable number, because it can be changed into a prime (457705236137) 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 as a sum of consecutive naturals, namely, 28606577251 + ... + 28606577266.

Almost surely, 2^457705236136 is an apocalyptic number.

It is an amenable number.

457705236136 is a deficient number, since it is larger than the sum of its proper divisors (400492081634).

457705236136 is a wasteful number, since it uses less digits than its factorization.

457705236136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57213154523 (or 57213154519 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 457705236136 in words is "four hundred fifty-seven billion, seven hundred five million, two hundred thirty-six thousand, one hundred thirty-six".