49969575486409 has 2 divisors, whose sum is σ = 49969575486410. Its totient is φ = 49969575486408.

The previous prime is 49969575486307. The next prime is 49969575486461. The reversal of 49969575486409 is 90468457596994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49941739900809 + 27835585600 = 7066947^2 + 166840^2 .

It is a cyclic number.

It is not a de Polignac number, because 49969575486409 - 2³¹ = 49967428002761 is a prime.

It is not a weakly prime, because it can be changed into another prime (49969575886409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24984787743204 + 24984787743205.

It is an arithmetic number, because the mean of its divisors is an integer number (24984787743205).

Almost surely, 2^{49969575486409} is an apocalyptic number.

It is an amenable number.

49969575486409 is a deficient number, since it is larger than the sum of its proper divisors (1).

49969575486409 is an equidigital number, since it uses as much as digits as its factorization.

49969575486409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21163161600, while the sum is 85.

The spelling of 49969575486409 in words is "forty-nine trillion, nine hundred sixty-nine billion, five hundred seventy-five million, four hundred eighty-six thousand, four hundred nine".