5257716632240 has 80 divisors (see below), whose sum is σ = 12559307992128. Its totient is φ = 2045475007488.

The previous prime is 5257716632213. The next prime is 5257716632249. The reversal of 5257716632240 is 422366177525.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (5257716632249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7548974 + ... + 8215986.

Almost surely, 2^{5257716632240} 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 5257716632240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6279653996064).

5257716632240 is an abundant number, since it is smaller than the sum of its proper divisors (7301591359888).

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

5257716632240 is a wasteful number, since it uses less digits than its factorization.

5257716632240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669726 (or 669720 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 5257716632240 in words is "five trillion, two hundred fifty-seven billion, seven hundred sixteen million, six hundred thirty-two thousand, two hundred forty".