6630454791 has 6 divisors (see below), whose sum is σ = 9577323600. Its totient is φ = 4420303188.

The previous prime is 6630454781. The next prime is 6630454799. The reversal of 6630454791 is 1974540366.

6630454791 is a `hidden beast` number, since 6 + 630 + 4 + 5 + 4 + 7 + 9 + 1 = 666.

It is not a de Polignac number, because 6630454791 - 2²¹ = 6628357639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630454799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 368358591 + ... + 368358608.

It is an arithmetic number, because the mean of its divisors is an integer number (1596220600).

Almost surely, 2^6630454791 is an apocalyptic number.

6630454791 is a deficient number, since it is larger than the sum of its proper divisors (2946868809).

6630454791 is a wasteful number, since it uses less digits than its factorization.

6630454791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736717205 (or 736717202 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6630454791 is about 81427.6046006512. The cubic root of 6630454791 is about 1878.6582012057.

The spelling of 6630454791 in words is "six billion, six hundred thirty million, four hundred fifty-four thousand, seven hundred ninety-one".