51155463214 has 4 divisors (see below), whose sum is σ = 76733194824. Its totient is φ = 25577731606.

The previous prime is 51155463199. The next prime is 51155463241. The reversal of 51155463214 is 41236455115.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×51155463214³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788865802 + ... + 12788865805.

It is an arithmetic number, because the mean of its divisors is an integer number (19183298706).

Almost surely, 2^51155463214 is an apocalyptic number.

51155463214 is a deficient number, since it is larger than the sum of its proper divisors (25577731610).

51155463214 is a wasteful number, since it uses less digits than its factorization.

51155463214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25577731609.

The product of its digits is 72000, while the sum is 37.

The spelling of 51155463214 in words is "fifty-one billion, one hundred fifty-five million, four hundred sixty-three thousand, two hundred fourteen".