51242316436231 has 8 divisors (see below), whose sum is σ = 51500158908800. Its totient is φ = 50984477398008.

The previous prime is 51242316436217. The next prime is 51242316436237. The reversal of 51242316436231 is 13263461324215.

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-51242316436231 is a prime.

It is a super-2 number, since 2×51242316436231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51242316436237) 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, 32263900 + ... + 33814846.

It is an arithmetic number, because the mean of its divisors is an integer number (6437519863600).

Almost surely, 2^{51242316436231} is an apocalyptic number.

51242316436231 is a deficient number, since it is larger than the sum of its proper divisors (257842472569).

51242316436231 is a wasteful number, since it uses less digits than its factorization.

51242316436231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717173.

The product of its digits is 622080, while the sum is 43.

The spelling of 51242316436231 in words is "fifty-one trillion, two hundred forty-two billion, three hundred sixteen million, four hundred thirty-six thousand, two hundred thirty-one".