51301616544123 has 8 divisors (see below), whose sum is σ = 74620533155136. Its totient is φ = 31091888814600.

The previous prime is 51301616544119. The next prime is 51301616544163. The reversal of 51301616544123 is 32144561610315.

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

It is not a de Polignac number, because 51301616544123 - 2² = 51301616544119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51301616544163) 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, 777297220333 + ... + 777297220398.

It is an arithmetic number, because the mean of its divisors is an integer number (9327566644392).

Almost surely, 2^{51301616544123} is an apocalyptic number.

51301616544123 is a deficient number, since it is larger than the sum of its proper divisors (23318916611013).

51301616544123 is a wasteful number, since it uses less digits than its factorization.

51301616544123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554594440745.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 51301616544123 in words is "fifty-one trillion, three hundred one billion, six hundred sixteen million, five hundred forty-four thousand, one hundred twenty-three".