57428029405 has 8 divisors (see below), whose sum is σ = 70043367384. Its totient is φ = 45189268800.

The previous prime is 57428029403. The next prime is 57428029423. The reversal of 57428029405 is 50492082475.

It can be written as a sum of positive squares in 4 ways, for example, as 71132356 + 57356897049 = 8434^2 + 239493^2 .

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

It is not a de Polignac number, because 57428029405 - 2¹ = 57428029403 is a prime.

It is a super-2 number, since 2×57428029405² (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 (57428029403) 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, 94144006 + ... + 94144615.

It is an arithmetic number, because the mean of its divisors is an integer number (8755420923).

Almost surely, 2^57428029405 is an apocalyptic number.

It is an amenable number.

57428029405 is a deficient number, since it is larger than the sum of its proper divisors (12615337979).

57428029405 is a wasteful number, since it uses less digits than its factorization.

57428029405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188288687.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 57428029405 in words is "fifty-seven billion, four hundred twenty-eight million, twenty-nine thousand, four hundred five".