6634265402 has 16 divisors (see below), whose sum is σ = 10551843432. Its totient is φ = 3117542400.

The previous prime is 6634265381. The next prime is 6634265423. The reversal of 6634265402 is 2045624366.

6634265402 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 81451²+1.

It is an interprime number because it is at equal distance from previous prime (6634265381) and next prime (6634265423).

It can be written as a sum of positive squares in 4 ways, for example, as 5721560881 + 912704521 = 75641^2 + 30211^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115343 + ... + 163010.

Almost surely, 2^6634265402 is an apocalyptic number.

6634265402 is a deficient number, since it is larger than the sum of its proper divisors (3917578030).

6634265402 is a wasteful number, since it uses less digits than its factorization.

6634265402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279073.

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 6634265402 is about 81451.0000061387. Note that the first 5 decimals coincide. The cubic root of 6634265402 is about 1879.0180289422.

Adding to 6634265402 its reverse (2045624366), we get a palindrome (8679889768).

The spelling of 6634265402 in words is "six billion, six hundred thirty-four million, two hundred sixty-five thousand, four hundred two".