84512631261 has 8 divisors (see below), whose sum is σ = 114593398560. Its totient is φ = 55386809072.

The previous prime is 84512631257. The next prime is 84512631289. The reversal of 84512631261 is 16213621548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84512631261 - 2² = 84512631257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84512631251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238736070 + ... + 238736423.

It is an arithmetic number, because the mean of its divisors is an integer number (14324174820).

Almost surely, 2^84512631261 is an apocalyptic number.

It is an amenable number.

84512631261 is a deficient number, since it is larger than the sum of its proper divisors (30080767299).

84512631261 is a wasteful number, since it uses less digits than its factorization.

84512631261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477472555.

The product of its digits is 69120, while the sum is 39.

The spelling of 84512631261 in words is "eighty-four billion, five hundred twelve million, six hundred thirty-one thousand, two hundred sixty-one".