8615124912321 has 12 divisors (see below), whose sum is σ = 12733466279248. Its totient is φ = 5609848779864.

The previous prime is 8615124912319. The next prime is 8615124912323. The reversal of 8615124912321 is 1232194215168.

8615124912321 is a `hidden beast` number, since 8 + 6 + 1 + 512 + 4 + 9 + 123 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (8615124912319) and next prime (8615124912323).

It is not a de Polignac number, because 8615124912321 - 2¹ = 8615124912319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8615124912323) 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, 11130651955 + ... + 11130652728.

Almost surely, 2^{8615124912321} is an apocalyptic number.

It is an amenable number.

8615124912321 is a deficient number, since it is larger than the sum of its proper divisors (4118341366927).

8615124912321 is a wasteful number, since it uses less digits than its factorization.

8615124912321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261304732 (or 22261304729 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 8615124912321 in words is "eight trillion, six hundred fifteen billion, one hundred twenty-four million, nine hundred twelve thousand, three hundred twenty-one".