6637742001 has 24 divisors (see below), whose sum is σ = 10469212416. Its totient is φ = 4019127840.

The previous prime is 6637741997. The next prime is 6637742003. The reversal of 6637742001 is 1002477366.

It is not a de Polignac number, because 6637742001 - 2² = 6637741997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6637742003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77536 + ... + 138878.

It is an arithmetic number, because the mean of its divisors is an integer number (436217184).

Almost surely, 2^6637742001 is an apocalyptic number.

It is an amenable number.

6637742001 is a deficient number, since it is larger than the sum of its proper divisors (3831470415).

6637742001 is a wasteful number, since it uses less digits than its factorization.

6637742001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62453 (or 62450 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 6637742001 is about 81472.3388703184. The cubic root of 6637742001 is about 1879.3461964700.

The spelling of 6637742001 in words is "six billion, six hundred thirty-seven million, seven hundred forty-two thousand, one".