8461626631 has 8 divisors (see below), whose sum is σ = 8960414400. Its totient is φ = 7962955008.

The previous prime is 8461626571. The next prime is 8461626671. The reversal of 8461626631 is 1366261648.

It is a happy number.

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 8461626631 - 2¹⁹ = 8461102343 is a prime.

It is a super-2 number, since 2×8461626631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461626671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153970 + ... + 201568.

It is an arithmetic number, because the mean of its divisors is an integer number (1120051800).

Almost surely, 2^8461626631 is an apocalyptic number.

8461626631 is a deficient number, since it is larger than the sum of its proper divisors (498787769).

8461626631 is a wasteful number, since it uses less digits than its factorization.

8461626631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58073.

The product of its digits is 248832, while the sum is 43.

The square root of 8461626631 is about 91987.1003510818. The cubic root of 8461626631 is about 2037.7518029521.

The spelling of 8461626631 in words is "eight billion, four hundred sixty-one million, six hundred twenty-six thousand, six hundred thirty-one".