52144613581421 has 8 divisors (see below), whose sum is σ = 52606725383520. Its totient is φ = 51684399569808.

The previous prime is 52144613581393. The next prime is 52144613581433. The reversal of 52144613581421 is 12418531644125.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52144613581421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144613586421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474392426 + ... + 474502331.

It is an arithmetic number, because the mean of its divisors is an integer number (6575840672940).

Almost surely, 2^{52144613581421} is an apocalyptic number.

It is an amenable number.

52144613581421 is a deficient number, since it is larger than the sum of its proper divisors (462111802099).

52144613581421 is a wasteful number, since it uses less digits than its factorization.

52144613581421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948895243.

The product of its digits is 921600, while the sum is 47.

The spelling of 52144613581421 in words is "fifty-two trillion, one hundred forty-four billion, six hundred thirteen million, five hundred eighty-one thousand, four hundred twenty-one".