6401700571 has 16 divisors (see below), whose sum is σ = 7827554560. Its totient is φ = 5113147680.

The previous prime is 6401700509. The next prime is 6401700577. The reversal of 6401700571 is 1750071046.

It is a cyclic number.

It is not a de Polignac number, because 6401700571 - 2⁹ = 6401700059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6401700577) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 386421 + ... + 402646.

It is an arithmetic number, because the mean of its divisors is an integer number (489222160).

Almost surely, 2^6401700571 is an apocalyptic number.

6401700571 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6401700571 is a deficient number, since it is larger than the sum of its proper divisors (1425853989).

6401700571 is a wasteful number, since it uses less digits than its factorization.

6401700571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789154.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 6401700571 is about 80010.6278628033. The cubic root of 6401700571 is about 1856.7999637022.

The spelling of 6401700571 in words is "six billion, four hundred one million, seven hundred thousand, five hundred seventy-one".