51142202234 has 8 divisors (see below), whose sum is σ = 78786635988. Its totient is φ = 24879990240.

The previous prime is 51142202203. The next prime is 51142202239. The reversal of 51142202234 is 43220224115.

It can be written as a sum of positive squares in 2 ways, for example, as 43057495009 + 8084707225 = 207503^2 + 89915^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51142202239) 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 3 ways as a sum of consecutive naturals, for example, 345555347 + ... + 345555494.

Almost surely, 2^51142202234 is an apocalyptic number.

51142202234 is a deficient number, since it is larger than the sum of its proper divisors (27644433754).

51142202234 is a wasteful number, since it uses less digits than its factorization.

51142202234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691110880.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 51142202234 its reverse (43220224115), we get a palindrome (94362426349).

The spelling of 51142202234 in words is "fifty-one billion, one hundred forty-two million, two hundred two thousand, two hundred thirty-four".