51138167342 has 8 divisors (see below), whose sum is σ = 76708229256. Its totient is φ = 25568757592.

The previous prime is 51138167309. The next prime is 51138167383. The reversal of 51138167342 is 24376183115.

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

It is a super-2 number, since 2×51138167342² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51138167342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164993 + ... + 359859.

It is an arithmetic number, because the mean of its divisors is an integer number (9588528657).

Almost surely, 2^51138167342 is an apocalyptic number.

51138167342 is a deficient number, since it is larger than the sum of its proper divisors (25570061914).

51138167342 is a wasteful number, since it uses less digits than its factorization.

51138167342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326082.

The product of its digits is 120960, while the sum is 41.

The spelling of 51138167342 in words is "fifty-one billion, one hundred thirty-eight million, one hundred sixty-seven thousand, three hundred forty-two".