51900896819495 has 4 divisors (see below), whose sum is σ = 62281076183400. Its totient is φ = 41520717455592.

The previous prime is 51900896819491. The next prime is 51900896819549. The reversal of 51900896819495 is 59491869800915.

It is a happy number.

51900896819495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51900896819495 - 2² = 51900896819491 is a prime.

It is a super-2 number, since 2×51900896819495² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51900896819491) 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, 5190089681945 + ... + 5190089681954.

It is an arithmetic number, because the mean of its divisors is an integer number (15570269045850).

Almost surely, 2^{51900896819495} is an apocalyptic number.

51900896819495 is a deficient number, since it is larger than the sum of its proper divisors (10380179363905).

51900896819495 is a wasteful number, since it uses less digits than its factorization.

51900896819495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10380179363904.

The product of its (nonzero) digits is 251942400, while the sum is 74.

The spelling of 51900896819495 in words is "fifty-one trillion, nine hundred billion, eight hundred ninety-six million, eight hundred nineteen thousand, four hundred ninety-five".