630648005481 has 48 divisors (see below), whose sum is σ = 988671849984. Its totient is φ = 385062135552.

The previous prime is 630648005447. The next prime is 630648005497. The reversal of 630648005481 is 184500846036.

630648005481 is a `hidden beast` number, since 6 + 30 + 64 + 80 + 0 + 5 + 481 = 666.

630648005481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630648005481 - 2⁶ = 630648005417 is a prime.

It is a super-2 number, since 2×630648005481² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630648005441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35367090 + ... + 35384916.

It is an arithmetic number, because the mean of its divisors is an integer number (20597330208).

Almost surely, 2^630648005481 is an apocalyptic number.

It is an amenable number.

630648005481 is a deficient number, since it is larger than the sum of its proper divisors (358023844503).

630648005481 is a wasteful number, since it uses less digits than its factorization.

630648005481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190 (or 20187 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 630648005481 in words is "six hundred thirty billion, six hundred forty-eight million, five thousand, four hundred eighty-one".