50687906378 has 4 divisors (see below), whose sum is σ = 76031859570. Its totient is φ = 25343953188.

The previous prime is 50687906309. The next prime is 50687906387. The reversal of 50687906378 is 87360978605.

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., 35297767129 + 15390139249 = 187877^2 + 124057^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671976593 + ... + 12671976596.

Almost surely, 2^50687906378 is an apocalyptic number.

50687906378 is a deficient number, since it is larger than the sum of its proper divisors (25343953192).

50687906378 is a wasteful number, since it uses less digits than its factorization.

50687906378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25343953191.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 50687906378 in words is "fifty billion, six hundred eighty-seven million, nine hundred six thousand, three hundred seventy-eight".