50344405402409 has 2 divisors, whose sum is σ = 50344405402410. Its totient is φ = 50344405402408.

The previous prime is 50344405402399. The next prime is 50344405402609. The reversal of 50344405402409 is 90420450444305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39076601272384 + 11267804130025 = 6251128^2 + 3356755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50344405402409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50344405402409.

It is not a weakly prime, because it can be changed into another prime (50344405402009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25172202701204 + 25172202701205.

It is an arithmetic number, because the mean of its divisors is an integer number (25172202701205).

Almost surely, 2^{50344405402409} is an apocalyptic number.

It is an amenable number.

50344405402409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50344405402409 is an equidigital number, since it uses as much as digits as its factorization.

50344405402409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 50344405402409 in words is "fifty trillion, three hundred forty-four billion, four hundred five million, four hundred two thousand, four hundred nine".