57072108447 has 6 divisors (see below), whose sum is σ = 82437489992. Its totient is φ = 38048072292.

The previous prime is 57072108407. The next prime is 57072108451. The reversal of 57072108447 is 74480127075.

57072108447 is a `hidden beast` number, since 570 + 72 + 1 + 0 + 8 + 4 + 4 + 7 = 666.

It is not a de Polignac number, because 57072108447 - 2¹⁰ = 57072107423 is a prime.

It is a super-2 number, since 2×57072108447² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57072108407) 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 5 ways as a sum of consecutive naturals, for example, 3170672683 + ... + 3170672700.

Almost surely, 2^57072108447 is an apocalyptic number.

57072108447 is a deficient number, since it is larger than the sum of its proper divisors (25365381545).

57072108447 is a wasteful number, since it uses less digits than its factorization.

57072108447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341345389 (or 6341345386 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 57072108447 in words is "fifty-seven billion, seventy-two million, one hundred eight thousand, four hundred forty-seven".