50778605311 has 8 divisors (see below), whose sum is σ = 61446379680. Its totient is φ = 40964252928.

The previous prime is 50778605291. The next prime is 50778605321. The reversal of 50778605311 is 11350687705.

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 50778605311 - 2⁷ = 50778605183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50778605321) 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, 213355366 + ... + 213355603.

It is an arithmetic number, because the mean of its divisors is an integer number (7680797460).

Almost surely, 2^50778605311 is an apocalyptic number.

50778605311 is a deficient number, since it is larger than the sum of its proper divisors (10667774369).

50778605311 is a wasteful number, since it uses less digits than its factorization.

50778605311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426710993.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 50778605311 in words is "fifty billion, seven hundred seventy-eight million, six hundred five thousand, three hundred eleven".