50778672837122 has 4 divisors (see below), whose sum is σ = 76168009255686. Its totient is φ = 25389336418560.

The previous prime is 50778672837119. The next prime is 50778672837173. The reversal of 50778672837122 is 22173827687705.

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

It can be written as a sum of positive squares in only one way, i.e., 33108159252961 + 17670513584161 = 5753969^2 + 4203631^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12694668209279 + ... + 12694668209282.

Almost surely, 2^{50778672837122} is an apocalyptic number.

50778672837122 is a deficient number, since it is larger than the sum of its proper divisors (25389336418564).

50778672837122 is a wasteful number, since it uses less digits than its factorization.

50778672837122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389336418563.

The product of its (nonzero) digits is 110638080, while the sum is 65.

The spelling of 50778672837122 in words is "fifty trillion, seven hundred seventy-eight billion, six hundred seventy-two million, eight hundred thirty-seven thousand, one hundred twenty-two".