57148042087 has 4 divisors (see below), whose sum is σ = 57148761496. Its totient is φ = 57147322680.

The previous prime is 57148042079. The next prime is 57148042139. The reversal of 57148042087 is 78024084175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57148042087 - 2³ = 57148042079 is a prime.

It is a super-3 number, since 3×57148042087³ (a number of 33 digits) contains 333 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 (57148040087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223308 + ... + 405169.

It is an arithmetic number, because the mean of its divisors is an integer number (14287190374).

Almost surely, 2^57148042087 is an apocalyptic number.

57148042087 is a deficient number, since it is larger than the sum of its proper divisors (719409).

57148042087 is an equidigital number, since it uses as much as digits as its factorization.

57148042087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719408.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 57148042087 in words is "fifty-seven billion, one hundred forty-eight million, forty-two thousand, eighty-seven".