57658337980 has 144 divisors (see below), whose sum is σ = 135021841920. Its totient is φ = 20638385152.

The previous prime is 57658337977. The next prime is 57658338013. The reversal of 57658337980 is 8973385675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23795049 + ... + 23797471.

It is an arithmetic number, because the mean of its divisors is an integer number (937651680).

Almost surely, 2^57658337980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57658337980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67510920960).

57658337980 is an abundant number, since it is smaller than the sum of its proper divisors (77363503940).

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

57658337980 is a wasteful number, since it uses less digits than its factorization.

57658337980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2649 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 57658337980 in words is "fifty-seven billion, six hundred fifty-eight million, three hundred thirty-seven thousand, nine hundred eighty".