57821320248 has 128 divisors (see below), whose sum is σ = 147518280000. Its totient is φ = 18884136960.

The previous prime is 57821320231. The next prime is 57821320253. The reversal of 57821320248 is 84202312875.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 101618908 + ... + 101619476.

Almost surely, 2^57821320248 is an apocalyptic number.

It is an amenable number.

57821320248 is an abundant number, since it is smaller than the sum of its proper divisors (89696959752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57821320248 is a wasteful number, since it uses less digits than its factorization.

57821320248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 57821320248 in words is "fifty-seven billion, eight hundred twenty-one million, three hundred twenty thousand, two hundred forty-eight".