63685263270 has 64 divisors (see below), whose sum is σ = 160096932864. Its totient is φ = 16182545280.

The previous prime is 63685263253. The next prime is 63685263277. The reversal of 63685263270 is 7236258636.

It is a super-2 number, since 2×63685263270² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63685263277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6000 + ... + 356940.

It is an arithmetic number, because the mean of its divisors is an integer number (2501514576).

Almost surely, 2^63685263270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63685263270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80048466432).

63685263270 is an abundant number, since it is smaller than the sum of its proper divisors (96411669594).

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

63685263270 is a wasteful number, since it uses less digits than its factorization.

63685263270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351237.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 63685263270 in words is "sixty-three billion, six hundred eighty-five million, two hundred sixty-three thousand, two hundred seventy".