6634271898 has 16 divisors (see below), whose sum is σ = 14742826560. Its totient is φ = 2211423948.

The previous prime is 6634271867. The next prime is 6634271927. The reversal of 6634271898 is 8981724366.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 122856887 = 6634271898 / (6 + 6 + 3 + 4 + 2 + 7 + 1 + 8 + 9 + 8).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61428390 + ... + 61428497.

It is an arithmetic number, because the mean of its divisors is an integer number (921426660).

Almost surely, 2^6634271898 is an apocalyptic number.

6634271898 is an abundant number, since it is smaller than the sum of its proper divisors (8108554662).

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

6634271898 is a wasteful number, since it uses less digits than its factorization.

6634271898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122856898 (or 122856892 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 6634271898 is about 81451.0398828646. The cubic root of 6634271898 is about 1879.0186422278.

The spelling of 6634271898 in words is "six billion, six hundred thirty-four million, two hundred seventy-one thousand, eight hundred ninety-eight".