51438415101854 has 16 divisors (see below), whose sum is σ = 84174970662000. Its totient is φ = 23380259252160.

The previous prime is 51438415101851. The next prime is 51438415101901. The reversal of 51438415101854 is 45810151483415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51438415101851) 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, 41298479 + ... + 42525770.

It is an arithmetic number, because the mean of its divisors is an integer number (5260935666375).

Almost surely, 2^{51438415101854} is an apocalyptic number.

51438415101854 is a deficient number, since it is larger than the sum of its proper divisors (32736555560146).

51438415101854 is a wasteful number, since it uses less digits than its factorization.

51438415101854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83852155.

The product of its (nonzero) digits is 1536000, while the sum is 50.

The spelling of 51438415101854 in words is "fifty-one trillion, four hundred thirty-eight billion, four hundred fifteen million, one hundred one thousand, eight hundred fifty-four".