63260271440 has 20 divisors (see below), whose sum is σ = 147080131284. Its totient is φ = 25304108544.

The previous prime is 63260271439. The next prime is 63260271461. The reversal of 63260271440 is 4417206236.

63260271440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16393217296 + 46867054144 = 128036^2 + 216488^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 63260271440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395376617 + ... + 395376776.

Almost surely, 2^63260271440 is an apocalyptic number.

It is an amenable number.

63260271440 is an abundant number, since it is smaller than the sum of its proper divisors (83819859844).

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

63260271440 is a wasteful number, since it uses less digits than its factorization.

63260271440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790753406 (or 790753400 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 63260271440 its reverse (4417206236), we get a palindrome (67677477676).

The spelling of 63260271440 in words is "sixty-three billion, two hundred sixty million, two hundred seventy-one thousand, four hundred forty".