50728545741961 has 2 divisors, whose sum is σ = 50728545741962. Its totient is φ = 50728545741960.

The previous prime is 50728545741833. The next prime is 50728545741977. The reversal of 50728545741961 is 16914754582705.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32078403888400 + 18650141853561 = 5663780^2 + 4318581^2 .

It is a cyclic number.

It is not a de Polignac number, because 50728545741961 - 2⁷ = 50728545741833 is a prime.

It is a super-2 number, since 2×50728545741961² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50728545741893 and 50728545741902.

It is not a weakly prime, because it can be changed into another prime (50728545741061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25364272870980 + 25364272870981.

It is an arithmetic number, because the mean of its divisors is an integer number (25364272870981).

Almost surely, 2^{50728545741961} is an apocalyptic number.

It is an amenable number.

50728545741961 is a deficient number, since it is larger than the sum of its proper divisors (1).

50728545741961 is an equidigital number, since it uses as much as digits as its factorization.

50728545741961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672000, while the sum is 64.

The spelling of 50728545741961 in words is "fifty trillion, seven hundred twenty-eight billion, five hundred forty-five million, seven hundred forty-one thousand, nine hundred sixty-one".