57145523387 has 8 divisors (see below), whose sum is σ = 58119290880. Its totient is φ = 56171929320.

The previous prime is 57145523371. The next prime is 57145523431. The reversal of 57145523387 is 78332554175.

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

It is a cyclic number.

It is not a de Polignac number, because 57145523387 - 2⁴ = 57145523371 is a prime.

It is a super-2 number, since 2×57145523387² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57145523317) 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, 741062 + ... + 814532.

It is an arithmetic number, because the mean of its divisors is an integer number (7264911360).

Almost surely, 2^57145523387 is an apocalyptic number.

57145523387 is a deficient number, since it is larger than the sum of its proper divisors (973767493).

57145523387 is a wasteful number, since it uses less digits than its factorization.

57145523387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86713.

The product of its digits is 3528000, while the sum is 50.

The spelling of 57145523387 in words is "fifty-seven billion, one hundred forty-five million, five hundred twenty-three thousand, three hundred eighty-seven".