43149272801 has 2 divisors, whose sum is σ = 43149272802. Its totient is φ = 43149272800.

The previous prime is 43149272791. The next prime is 43149272809. The reversal of 43149272801 is 10827294134.

43149272801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34204653025 + 8944619776 = 184945^2 + 94576^2 .

It is a cyclic number.

It is not a de Polignac number, because 43149272801 - 2¹⁰ = 43149271777 is a prime.

It is not a weakly prime, because it can be changed into another prime (43149272809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21574636400 + 21574636401.

It is an arithmetic number, because the mean of its divisors is an integer number (21574636401).

Almost surely, 2^43149272801 is an apocalyptic number.

It is an amenable number.

43149272801 is a deficient number, since it is larger than the sum of its proper divisors (1).

43149272801 is an equidigital number, since it uses as much as digits as its factorization.

43149272801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 43149272801 in words is "forty-three billion, one hundred forty-nine million, two hundred seventy-two thousand, eight hundred one".