441688121401 has 4 divisors (see below), whose sum is σ = 441752542452. Its totient is φ = 441623700352.

The previous prime is 441688121393. The next prime is 441688121443. The reversal of 441688121401 is 104121886144.

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 50569215376 + 391118906025 = 224876^2 + 625395^2 .

It is a cyclic number.

It is not a de Polignac number, because 441688121401 - 2³ = 441688121393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441688121461) 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, 32200240 + ... + 32213953.

It is an arithmetic number, because the mean of its divisors is an integer number (110438135613).

Almost surely, 2^441688121401 is an apocalyptic number.

It is an amenable number.

441688121401 is a deficient number, since it is larger than the sum of its proper divisors (64421051).

441688121401 is an equidigital number, since it uses as much as digits as its factorization.

441688121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64421050.

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 441688121401 in words is "four hundred forty-one billion, six hundred eighty-eight million, one hundred twenty-one thousand, four hundred one".