6401602628 has 6 divisors (see below), whose sum is σ = 11202804606. Its totient is φ = 3200801312.

The previous prime is 6401602573. The next prime is 6401602631. The reversal of 6401602628 is 8262061046.

It can be written as a sum of positive squares in only one way, i.e., 4504825924 + 1896776704 = 67118^2 + 43552^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800200325 + ... + 800200332.

It is an arithmetic number, because the mean of its divisors is an integer number (1867134101).

Almost surely, 2^6401602628 is an apocalyptic number.

It is an amenable number.

6401602628 is a deficient number, since it is larger than the sum of its proper divisors (4801201978).

6401602628 is a wasteful number, since it uses less digits than its factorization.

6401602628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600400661 (or 1600400659 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 6401602628 is about 80010.0157980237. The cubic root of 6401602628 is about 1856.7904942660.

The spelling of 6401602628 in words is "six billion, four hundred one million, six hundred two thousand, six hundred twenty-eight".