84461969129 has 4 divisors (see below), whose sum is σ = 85651574400. Its totient is φ = 83272363860.

The previous prime is 84461969117. The next prime is 84461969153. The reversal of 84461969129 is 92196916448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84461969129 - 2⁴ = 84461969113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84461969629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594802529 + ... + 594802670.

It is an arithmetic number, because the mean of its divisors is an integer number (21412893600).

Almost surely, 2^84461969129 is an apocalyptic number.

It is an amenable number.

84461969129 is a deficient number, since it is larger than the sum of its proper divisors (1189605271).

84461969129 is a wasteful number, since it uses less digits than its factorization.

84461969129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189605270.

The product of its digits is 6718464, while the sum is 59.

The spelling of 84461969129 in words is "eighty-four billion, four hundred sixty-one million, nine hundred sixty-nine thousand, one hundred twenty-nine".