51534206403644 has 12 divisors (see below), whose sum is σ = 90578681562600. Its totient is φ = 25654583100048.

The previous prime is 51534206403643. The next prime is 51534206403709. The reversal of 51534206403644 is 44630460243515.

51534206403644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51534206403643) 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, 28130024414 + ... + 28130026245.

It is an arithmetic number, because the mean of its divisors is an integer number (7548223463550).

Almost surely, 2^{51534206403644} is an apocalyptic number.

It is an amenable number.

51534206403644 is a deficient number, since it is larger than the sum of its proper divisors (39044475158956).

51534206403644 is a wasteful number, since it uses less digits than its factorization.

51534206403644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56260050892 (or 56260050890 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 51534206403644 in words is "fifty-one trillion, five hundred thirty-four billion, two hundred six million, four hundred three thousand, six hundred forty-four".