57444561789 has 8 divisors (see below), whose sum is σ = 79922868672. Its totient is φ = 36631314720.

The previous prime is 57444561787. The next prime is 57444561817. The reversal of 57444561789 is 98716544475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57444561789 - 2¹ = 57444561787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57444561787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416264872 + ... + 416265009.

It is an arithmetic number, because the mean of its divisors is an integer number (9990358584).

Almost surely, 2^57444561789 is an apocalyptic number.

It is an amenable number.

57444561789 is a deficient number, since it is larger than the sum of its proper divisors (22478306883).

57444561789 is a wasteful number, since it uses less digits than its factorization.

57444561789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832529907.

The product of its digits is 33868800, while the sum is 60.

The spelling of 57444561789 in words is "fifty-seven billion, four hundred forty-four million, five hundred sixty-one thousand, seven hundred eighty-nine".