57238469649 has 12 divisors (see below), whose sum is σ = 82786443012. Its totient is φ = 38108832000.

The previous prime is 57238469641. The next prime is 57238469653. The reversal of 57238469649 is 94696483275.

It can be written as a sum of positive squares in 2 ways, for example, as 5706291600 + 51532178049 = 75540^2 + 227007^2 .

It is not a de Polignac number, because 57238469649 - 2³ = 57238469641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57238469641) 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 11 ways as a sum of consecutive naturals, for example, 4171752 + ... + 4185449.

It is an arithmetic number, because the mean of its divisors is an integer number (6898870251).

Almost surely, 2^57238469649 is an apocalyptic number.

It is an amenable number.

57238469649 is a deficient number, since it is larger than the sum of its proper divisors (25547973363).

57238469649 is a wasteful number, since it uses less digits than its factorization.

57238469649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8357968 (or 8357965 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 57238469649 in words is "fifty-seven billion, two hundred thirty-eight million, four hundred sixty-nine thousand, six hundred forty-nine".