57719408340 has 48 divisors (see below), whose sum is σ = 176306558400. Its totient is φ = 13992583680.

The previous prime is 57719408317. The next prime is 57719408443. The reversal of 57719408340 is 4380491775.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 57719408340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43726165 + ... + 43727484.

It is an arithmetic number, because the mean of its divisors is an integer number (3673053300).

Almost surely, 2^57719408340 is an apocalyptic number.

It is an amenable number.

57719408340 is an abundant number, since it is smaller than the sum of its proper divisors (118587150060).

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

57719408340 is a wasteful number, since it uses less digits than its factorization.

57719408340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87453672 (or 87453670 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 57719408340 in words is "fifty-seven billion, seven hundred nineteen million, four hundred eight thousand, three hundred forty".