51138167303 has 8 divisors (see below), whose sum is σ = 51224999472. Its totient is φ = 51051401856.

The previous prime is 51138167287. The next prime is 51138167309. The reversal of 51138167303 is 30376183115.

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 51138167303 - 2⁴ = 51138167287 is a prime.

It is a super-2 number, since 2×51138167303² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51138167309) 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, 1657151 + ... + 1687727.

It is an arithmetic number, because the mean of its divisors is an integer number (6403124934).

Almost surely, 2^51138167303 is an apocalyptic number.

51138167303 is a deficient number, since it is larger than the sum of its proper divisors (86832169).

51138167303 is a wasteful number, since it uses less digits than its factorization.

51138167303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33361.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 51138167303 in words is "fifty-one billion, one hundred thirty-eight million, one hundred sixty-seven thousand, three hundred three".