6637429452 has 12 divisors (see below), whose sum is σ = 15487335416. Its totient is φ = 2212476480.

The previous prime is 6637429427. The next prime is 6637429453. The reversal of 6637429452 is 2549247366.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6637429453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276559549 + ... + 276559572.

Almost surely, 2^6637429452 is an apocalyptic number.

It is an amenable number.

6637429452 is an abundant number, since it is smaller than the sum of its proper divisors (8849905964).

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

6637429452 is a wasteful number, since it uses less digits than its factorization.

6637429452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553119128 (or 553119126 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 48.

The square root of 6637429452 is about 81470.4207181969. The cubic root of 6637429452 is about 1879.3166986380.

The spelling of 6637429452 in words is "six billion, six hundred thirty-seven million, four hundred twenty-nine thousand, four hundred fifty-two".