84492405684949 has 2 divisors, whose sum is σ = 84492405684950. Its totient is φ = 84492405684948.

The previous prime is 84492405684901. The next prime is 84492405685019. The reversal of 84492405684949 is 94948650429448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73329336195025 + 11163069489924 = 8563255^2 + 3341118^2 .

It is a cyclic number.

It is not a de Polignac number, because 84492405684949 - 2¹¹ = 84492405682901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84492405684149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42246202842474 + 42246202842475.

It is an arithmetic number, because the mean of its divisors is an integer number (42246202842475).

Almost surely, 2^{84492405684949} is an apocalyptic number.

It is an amenable number.

84492405684949 is a deficient number, since it is larger than the sum of its proper divisors (1).

84492405684949 is an equidigital number, since it uses as much as digits as its factorization.

84492405684949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2866544640, while the sum is 76.

The spelling of 84492405684949 in words is "eighty-four trillion, four hundred ninety-two billion, four hundred five million, six hundred eighty-four thousand, nine hundred forty-nine".