6453717522 has 128 divisors (see below), whose sum is σ = 15838986240. Its totient is φ = 1713096000.

The previous prime is 6453717521. The next prime is 6453717559. The reversal of 6453717522 is 2257173546.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6453717521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10425729 + ... + 10426347.

It is an arithmetic number, because the mean of its divisors is an integer number (123742080).

Almost surely, 2^6453717522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6453717522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7919493120).

6453717522 is an abundant number, since it is smaller than the sum of its proper divisors (9385268718).

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

6453717522 is a wasteful number, since it uses less digits than its factorization.

6453717522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its digits is 352800, while the sum is 42.

The square root of 6453717522 is about 80335.0329681889. The cubic root of 6453717522 is about 1861.8155396873.

The spelling of 6453717522 in words is "six billion, four hundred fifty-three million, seven hundred seventeen thousand, five hundred twenty-two".