51211644435241 has 8 divisors (see below), whose sum is σ = 52983296368200. Its totient is φ = 49440374712960.

The previous prime is 51211644435233. The next prime is 51211644435253. The reversal of 51211644435241 is 14253444611215.

It can be written as a sum of positive squares in 4 ways, for example, as 6682328400400 + 44529316034841 = 2585020^2 + 6673029^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51211644435241 - 2³ = 51211644435233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51211644435221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95280046 + ... + 95816023.

It is an arithmetic number, because the mean of its divisors is an integer number (6622912046025).

Almost surely, 2^{51211644435241} is an apocalyptic number.

It is an amenable number.

51211644435241 is a deficient number, since it is larger than the sum of its proper divisors (1771651932959).

51211644435241 is a wasteful number, since it uses less digits than its factorization.

51211644435241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191105339.

The product of its digits is 460800, while the sum is 43.

The spelling of 51211644435241 in words is "fifty-one trillion, two hundred eleven billion, six hundred forty-four million, four hundred thirty-five thousand, two hundred forty-one".