50401685182669 has 2 divisors, whose sum is σ = 50401685182670. Its totient is φ = 50401685182668.

The previous prime is 50401685182661. The next prime is 50401685182691. The reversal of 50401685182669 is 96628158610405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30523801777225 + 19877883405444 = 5524835^2 + 4458462^2 .

It is a cyclic number.

It is not a de Polignac number, because 50401685182669 - 2³ = 50401685182661 is a prime.

It is a super-2 number, since 2×50401685182669² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50401685182661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25200842591334 + 25200842591335.

It is an arithmetic number, because the mean of its divisors is an integer number (25200842591335).

Almost surely, 2^{50401685182669} is an apocalyptic number.

It is an amenable number.

50401685182669 is a deficient number, since it is larger than the sum of its proper divisors (1).

50401685182669 is an equidigital number, since it uses as much as digits as its factorization.

50401685182669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 50401685182669 in words is "fifty trillion, four hundred one billion, six hundred eighty-five million, one hundred eighty-two thousand, six hundred sixty-nine".