11728337801 has 2 divisors, whose sum is σ = 11728337802. Its totient is φ = 11728337800.

The previous prime is 11728337741. The next prime is 11728337837. The reversal of 11728337801 is 10873382711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9855525625 + 1872812176 = 99275^2 + 43276^2 .

It is a cyclic number.

It is not a de Polignac number, because 11728337801 - 2¹⁸ = 11728075657 is a prime.

It is not a weakly prime, because it can be changed into another prime (11728339801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5864168900 + 5864168901.

It is an arithmetic number, because the mean of its divisors is an integer number (5864168901).

Almost surely, 2^11728337801 is an apocalyptic number.

It is an amenable number.

11728337801 is a deficient number, since it is larger than the sum of its proper divisors (1).

11728337801 is an equidigital number, since it uses as much as digits as its factorization.

11728337801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 11728337801 in words is "eleven billion, seven hundred twenty-eight million, three hundred thirty-seven thousand, eight hundred one".