51515329214 has 8 divisors (see below), whose sum is σ = 77495683608. Its totient is φ = 25683434680.

The previous prime is 51515329213. The next prime is 51515329241. The reversal of 51515329214 is 41292351515.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51515329213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37114097 + ... + 37115484.

It is an arithmetic number, because the mean of its divisors is an integer number (9686960451).

Almost surely, 2^51515329214 is an apocalyptic number.

51515329214 is a deficient number, since it is larger than the sum of its proper divisors (25980354394).

51515329214 is a wasteful number, since it uses less digits than its factorization.

51515329214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74229930.

The product of its digits is 54000, while the sum is 38.

The spelling of 51515329214 in words is "fifty-one billion, five hundred fifteen million, three hundred twenty-nine thousand, two hundred fourteen".