50192278691881 has 2 divisors, whose sum is σ = 50192278691882. Its totient is φ = 50192278691880.

The previous prime is 50192278691813. The next prime is 50192278691903. The reversal of 50192278691881 is 18819687229105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50094757395225 + 97521296656 = 7077765^2 + 312284^2 .

It is a cyclic number.

It is not a de Polignac number, because 50192278691881 - 2¹³ = 50192278683689 is a prime.

It is a super-2 number, since 2×50192278691881² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50192273691881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25096139345940 + 25096139345941.

It is an arithmetic number, because the mean of its divisors is an integer number (25096139345941).

Almost surely, 2^{50192278691881} is an apocalyptic number.

It is an amenable number.

50192278691881 is a deficient number, since it is larger than the sum of its proper divisors (1).

50192278691881 is an equidigital number, since it uses as much as digits as its factorization.

50192278691881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 67.

The spelling of 50192278691881 in words is "fifty trillion, one hundred ninety-two billion, two hundred seventy-eight million, six hundred ninety-one thousand, eight hundred eighty-one".