51172750079 has 8 divisors (see below), whose sum is σ = 55826659200. Its totient is φ = 46519147800.

The previous prime is 51172750067. The next prime is 51172750093. The reversal of 51172750079 is 97005727115.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51172750079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51172750009) 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, 401822 + ... + 513620.

It is an arithmetic number, because the mean of its divisors is an integer number (6978332400).

Almost surely, 2^51172750079 is an apocalyptic number.

51172750079 is a deficient number, since it is larger than the sum of its proper divisors (4653909121).

51172750079 is a wasteful number, since it uses less digits than its factorization.

51172750079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153421.

The product of its (nonzero) digits is 154350, while the sum is 44.

The spelling of 51172750079 in words is "fifty-one billion, one hundred seventy-two million, seven hundred fifty thousand, seventy-nine".