815630827149 has 12 divisors (see below), whose sum is σ = 1240140439200. Its totient is φ = 515135259144.

The previous prime is 815630827147. The next prime is 815630827157. The reversal of 815630827149 is 941728036518.

815630827149 is a `hidden beast` number, since 8 + 1 + 563 + 0 + 8 + 2 + 71 + 4 + 9 = 666.

It is not a de Polignac number, because 815630827149 - 2¹ = 815630827147 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 815630827095 and 815630827104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815630827147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2384885289 + ... + 2384885630.

It is an arithmetic number, because the mean of its divisors is an integer number (103345036600).

It is a 1-persistent number, because it is pandigital, but 2⋅815630827149 = 1631261654298 is not.

Almost surely, 2^815630827149 is an apocalyptic number.

It is an amenable number.

815630827149 is a deficient number, since it is larger than the sum of its proper divisors (424509612051).

815630827149 is a wasteful number, since it uses less digits than its factorization.

815630827149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769770944 (or 4769770941 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 815630827149 in words is "eight hundred fifteen billion, six hundred thirty million, eight hundred twenty-seven thousand, one hundred forty-nine".