6731572401 has 12 divisors (see below), whose sum is σ = 9724869700. Its totient is φ = 4487028480.

The previous prime is 6731572387. The next prime is 6731572427. The reversal of 6731572401 is 1042751376.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2102130801 + 4629441600 = 45849^2 + 68040^2 .

It is not a de Polignac number, because 6731572401 - 2¹³ = 6731564209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6731572451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8925 + ... + 116373.

Almost surely, 2^6731572401 is an apocalyptic number.

It is an amenable number.

6731572401 is a deficient number, since it is larger than the sum of its proper divisors (2993297299).

6731572401 is a wasteful number, since it uses less digits than its factorization.

6731572401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114416 (or 114413 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 6731572401 is about 82046.1601843743. The cubic root of 6731572401 is about 1888.1602059641.

The spelling of 6731572401 in words is "six billion, seven hundred thirty-one million, five hundred seventy-two thousand, four hundred one".