50639851090 has 16 divisors (see below), whose sum is σ = 96513598872. Its totient is φ = 19064414464.

The previous prime is 50639851081. The next prime is 50639851103. The reversal of 50639851090 is 9015893605.

It is a Cunningham number, because it is equal to 225033²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 39425676481 + 11214174609 = 198559^2 + 105897^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50639851090.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148940569 + ... + 148940908.

Almost surely, 2^50639851090 is an apocalyptic number.

50639851090 is a deficient number, since it is larger than the sum of its proper divisors (45873747782).

50639851090 is a wasteful number, since it uses less digits than its factorization.

50639851090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297881501.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 50639851090 in words is "fifty billion, six hundred thirty-nine million, eight hundred fifty-one thousand, ninety".