51438437256877 has 8 divisors (see below), whose sum is σ = 56905006133952. Its totient is φ = 46103592931200.

The previous prime is 51438437256863. The next prime is 51438437256881. The reversal of 51438437256877 is 77865273483415.

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

It is a cyclic number.

It is not a de Polignac number, because 51438437256877 - 2¹¹ = 51438437254829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51438437256887) 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, 32931137028 + ... + 32931138589.

It is an arithmetic number, because the mean of its divisors is an integer number (7113125766744).

Almost surely, 2^{51438437256877} is an apocalyptic number.

It is an amenable number.

51438437256877 is a deficient number, since it is larger than the sum of its proper divisors (5466568877075).

51438437256877 is a wasteful number, since it uses less digits than its factorization.

51438437256877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65862275699.

The product of its digits is 948326400, while the sum is 70.

The spelling of 51438437256877 in words is "fifty-one trillion, four hundred thirty-eight billion, four hundred thirty-seven million, two hundred fifty-six thousand, eight hundred seventy-seven".