63081271384 has 16 divisors (see below), whose sum is σ = 119425709520. Its totient is φ = 31234415520.

The previous prime is 63081271321. The next prime is 63081271387. The reversal of 63081271384 is 48317218036.

It is a self number, because there is not a number n which added to its sum of digits gives 63081271384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63081271387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38276647 + ... + 38278294.

It is an arithmetic number, because the mean of its divisors is an integer number (7464106845).

Almost surely, 2^63081271384 is an apocalyptic number.

It is an amenable number.

63081271384 is a deficient number, since it is larger than the sum of its proper divisors (56344438136).

63081271384 is a wasteful number, since it uses less digits than its factorization.

63081271384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76555050 (or 76555046 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 63081271384 in words is "sixty-three billion, eighty-one million, two hundred seventy-one thousand, three hundred eighty-four".