51200078159 has 4 divisors (see below), whose sum is σ = 51203536440. Its totient is φ = 51196619880.

The previous prime is 51200078143. The next prime is 51200078203. The reversal of 51200078159 is 95187000215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51200078159 - 2⁴ = 51200078143 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 (51200078459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706837 + ... + 1736574.

It is an arithmetic number, because the mean of its divisors is an integer number (12800884110).

Almost surely, 2^51200078159 is an apocalyptic number.

51200078159 is a deficient number, since it is larger than the sum of its proper divisors (3458281).

51200078159 is a wasteful number, since it uses less digits than its factorization.

51200078159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458280.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 51200078159 in words is "fifty-one billion, two hundred million, seventy-eight thousand, one hundred fifty-nine".