50781286811 has 16 divisors (see below), whose sum is σ = 53023299840. Its totient is φ = 48587834880.

The previous prime is 50781286781. The next prime is 50781286813. The reversal of 50781286811 is 11868218705.

It is a cyclic number.

It is not a de Polignac number, because 50781286811 - 2⁶ = 50781286747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50781286813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10217135 + ... + 10222103.

It is an arithmetic number, because the mean of its divisors is an integer number (3313956240).

Almost surely, 2^50781286811 is an apocalyptic number.

50781286811 is a deficient number, since it is larger than the sum of its proper divisors (2242013029).

50781286811 is a wasteful number, since it uses less digits than its factorization.

50781286811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766.

The product of its (nonzero) digits is 215040, while the sum is 47.

The spelling of 50781286811 in words is "fifty billion, seven hundred eighty-one million, two hundred eighty-six thousand, eight hundred eleven".