6403848634 has 4 divisors (see below), whose sum is σ = 9605772954. Its totient is φ = 3201924316.

The previous prime is 6403848631. The next prime is 6403848641. The reversal of 6403848634 is 4368483046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5707047025 + 696801609 = 75545^2 + 26397^2 .

It is not an unprimeable number, because it can be changed into a prime (6403848631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600962157 + ... + 1600962160.

Almost surely, 2^6403848634 is an apocalyptic number.

6403848634 is a deficient number, since it is larger than the sum of its proper divisors (3201924320).

6403848634 is a wasteful number, since it uses less digits than its factorization.

6403848634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201924319.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The square root of 6403848634 is about 80024.0503473799. The cubic root of 6403848634 is about 1857.0076208827.

The spelling of 6403848634 in words is "six billion, four hundred three million, eight hundred forty-eight thousand, six hundred thirty-four".