51242470411 has 12 divisors (see below), whose sum is σ = 56610305136. Its totient is φ = 46347575120.

The previous prime is 51242470399. The next prime is 51242470417. The reversal of 51242470411 is 11407424215.

It is a happy number.

It is not a de Polignac number, because 51242470411 - 2¹⁵ = 51242437643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51242470417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051015 + ... + 1098688.

It is an arithmetic number, because the mean of its divisors is an integer number (4717525428).

Almost surely, 2^51242470411 is an apocalyptic number.

51242470411 is a deficient number, since it is larger than the sum of its proper divisors (5367834725).

51242470411 is a wasteful number, since it uses less digits than its factorization.

51242470411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149922 (or 2149911 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

Adding to 51242470411 its reverse (11407424215), we get a palindrome (62649894626).

The spelling of 51242470411 in words is "fifty-one billion, two hundred forty-two million, four hundred seventy thousand, four hundred eleven".