6462728401 has 4 divisors (see below), whose sum is σ = 6462900532. Its totient is φ = 6462556272.

The previous prime is 6462728339. The next prime is 6462728407. The reversal of 6462728401 is 1048272646.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1818169600 + 4644558801 = 42640^2 + 68151^2 .

It is a cyclic number.

It is not a de Polignac number, because 6462728401 - 2¹¹ = 6462726353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6462728407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3066 + ... + 113731.

It is an arithmetic number, because the mean of its divisors is an integer number (1615725133).

Almost surely, 2^6462728401 is an apocalyptic number.

It is an amenable number.

6462728401 is a deficient number, since it is larger than the sum of its proper divisors (172131).

6462728401 is a wasteful number, since it uses less digits than its factorization.

6462728401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172130.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 6462728401 is about 80391.0965281604. The cubic root of 6462728401 is about 1862.6816447678.

The spelling of 6462728401 in words is "six billion, four hundred sixty-two million, seven hundred twenty-eight thousand, four hundred one".