50280137629 has 2 divisors, whose sum is σ = 50280137630. Its totient is φ = 50280137628.

The previous prime is 50280137623. The next prime is 50280137641. The reversal of 50280137629 is 92673108205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31483179225 + 18796958404 = 177435^2 + 137102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50280137629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50280137623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140068814 + 25140068815.

It is an arithmetic number, because the mean of its divisors is an integer number (25140068815).

Almost surely, 2^50280137629 is an apocalyptic number.

It is an amenable number.

50280137629 is a deficient number, since it is larger than the sum of its proper divisors (1).

50280137629 is an equidigital number, since it uses as much as digits as its factorization.

50280137629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 50280137629 in words is "fifty billion, two hundred eighty million, one hundred thirty-seven thousand, six hundred twenty-nine".