57778297144 has 16 divisors (see below), whose sum is σ = 108360619200. Its totient is φ = 28882132032.

The previous prime is 57778297121. The next prime is 57778297151. The reversal of 57778297144 is 44179287775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841989 + ... + 908020.

It is an arithmetic number, because the mean of its divisors is an integer number (6772538700).

Almost surely, 2^57778297144 is an apocalyptic number.

It is an amenable number.

57778297144 is a deficient number, since it is larger than the sum of its proper divisors (50582322056).

57778297144 is a wasteful number, since it uses less digits than its factorization.

57778297144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754142 (or 1754138 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 61.

The spelling of 57778297144 in words is "fifty-seven billion, seven hundred seventy-eight million, two hundred ninety-seven thousand, one hundred forty-four".