39244052457 has 6 divisors (see below), whose sum is σ = 56685853562. Its totient is φ = 26162701632.

The previous prime is 39244052431. The next prime is 39244052459. The reversal of 39244052457 is 75425044293.

39244052457 is a `hidden beast` number, since 39 + 2 + 4 + 40 + 524 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38226506256 + 1017546201 = 195516^2 + 31899^2 .

It is not a de Polignac number, because 39244052457 - 2²³ = 39235663849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39244052459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2180225128 + ... + 2180225145.

Almost surely, 2^39244052457 is an apocalyptic number.

It is an amenable number.

39244052457 is a deficient number, since it is larger than the sum of its proper divisors (17441801105).

39244052457 is a wasteful number, since it uses less digits than its factorization.

39244052457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360450279 (or 4360450276 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 39244052457 in words is "thirty-nine billion, two hundred forty-four million, fifty-two thousand, four hundred fifty-seven".