63323065881 has 24 divisors (see below), whose sum is σ = 94313104704. Its totient is φ = 40910724000.

The previous prime is 63323065873. The next prime is 63323065901. The reversal of 63323065881 is 18856032336.

63323065881 is a `hidden beast` number, since 6 + 3 + 32 + 30 + 6 + 588 + 1 = 666.

It is not a de Polignac number, because 63323065881 - 2³ = 63323065873 is a prime.

It is a super-2 number, since 2×63323065881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63323065801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295221 + ... + 462386.

It is an arithmetic number, because the mean of its divisors is an integer number (3929712696).

Almost surely, 2^63323065881 is an apocalyptic number.

It is an amenable number.

63323065881 is a deficient number, since it is larger than the sum of its proper divisors (30990038823).

63323065881 is a wasteful number, since it uses less digits than its factorization.

63323065881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757901 (or 757898 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 63323065881 in words is "sixty-three billion, three hundred twenty-three million, sixty-five thousand, eight hundred eighty-one".