51512243414 has 16 divisors (see below), whose sum is σ = 81345508080. Its totient is φ = 24397420320.

The previous prime is 51512243399. The next prime is 51512243417. The reversal of 51512243414 is 41434221515.

It is a super-2 number, since 2×51512243414² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51512243417) 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, 229952 + ... + 394844.

It is an arithmetic number, because the mean of its divisors is an integer number (5084094255).

Almost surely, 2^51512243414 is an apocalyptic number.

51512243414 is a deficient number, since it is larger than the sum of its proper divisors (29833264666).

51512243414 is a wasteful number, since it uses less digits than its factorization.

51512243414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173135.

The product of its digits is 19200, while the sum is 32.

Adding to 51512243414 its reverse (41434221515), we get a palindrome (92946464929).

The spelling of 51512243414 in words is "fifty-one billion, five hundred twelve million, two hundred forty-three thousand, four hundred fourteen".