50617728394 has 4 divisors (see below), whose sum is σ = 75926592594. Its totient is φ = 25308864196.

The previous prime is 50617728389. The next prime is 50617728397. The reversal of 50617728394 is 49382771605.

50617728394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 43040896369 + 7576832025 = 207463^2 + 87045^2 .

It is not an unprimeable number, because it can be changed into a prime (50617728397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12654432097 + ... + 12654432100.

It is a 1-persistent number, because it is pandigital, but 2⋅50617728394 = 101235456788 is not.

Almost surely, 2^50617728394 is an apocalyptic number.

50617728394 is a deficient number, since it is larger than the sum of its proper divisors (25308864200).

50617728394 is a wasteful number, since it uses less digits than its factorization.

50617728394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25308864199.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 50617728394 in words is "fifty billion, six hundred seventeen million, seven hundred twenty-eight thousand, three hundred ninety-four".