84490010409 has 32 divisors (see below), whose sum is σ = 131842529280. Its totient is φ = 47120798592.

The previous prime is 84490010383. The next prime is 84490010411. The reversal of 84490010409 is 90401009448.

It is not a de Polignac number, because 84490010409 - 2¹⁶ = 84489944873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84490010909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155589 + ... + 1226525.

It is an arithmetic number, because the mean of its divisors is an integer number (4120079040).

Almost surely, 2^84490010409 is an apocalyptic number.

It is an amenable number.

84490010409 is a deficient number, since it is larger than the sum of its proper divisors (47352518871).

84490010409 is a wasteful number, since it uses less digits than its factorization.

84490010409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72309.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 84490010409 in words is "eighty-four billion, four hundred ninety million, ten thousand, four hundred nine".