63314560840 has 64 divisors (see below), whose sum is σ = 145485558000. Its totient is φ = 24793190400.

The previous prime is 63314560811. The next prime is 63314560853. The reversal of 63314560840 is 4806541336.

It can be written as a sum of positive squares in 8 ways, for example, as 13899938404 + 49414622436 = 117898^2 + 222294^2 .

It is a super-2 number, since 2×63314560840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 63314560793 and 63314560802.

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, 271516 + ... + 447604.

Almost surely, 2^63314560840 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 63314560840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72742779000).

63314560840 is an abundant number, since it is smaller than the sum of its proper divisors (82170997160).

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

63314560840 is a wasteful number, since it uses less digits than its factorization.

63314560840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176290 (or 176286 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 63314560840 in words is "sixty-three billion, three hundred fourteen million, five hundred sixty thousand, eight hundred forty".