63271380040 has 64 divisors (see below), whose sum is σ = 155544701760. Its totient is φ = 22971889920.

The previous prime is 63271380001. The next prime is 63271380043. The reversal of 63271380040 is 4008317236.

It is a happy number.

It is a super-2 number, since 2×63271380040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63271379978 and 63271380005.

It is not an unprimeable number, because it can be changed into a prime (63271380043) 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, 171102 + ... + 394738.

It is an arithmetic number, because the mean of its divisors is an integer number (2430385965).

Almost surely, 2^63271380040 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 63271380040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77772350880).

63271380040 is an abundant number, since it is smaller than the sum of its proper divisors (92273321720).

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

63271380040 is a wasteful number, since it uses less digits than its factorization.

63271380040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224302 (or 224298 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 63271380040 its reverse (4008317236), we get a palindrome (67279697276).

The spelling of 63271380040 in words is "sixty-three billion, two hundred seventy-one million, three hundred eighty thousand, forty".