8233778725155 has 24 divisors (see below), whose sum is σ = 14272051659840. Its totient is φ = 4391296796160.

The previous prime is 8233778725147. The next prime is 8233778725219. The reversal of 8233778725155 is 5515278773328.

8233778725155 is a `hidden beast` number, since 8 + 2 + 3 + 37 + 7 + 87 + 2 + 515 + 5 = 666.

It is not a de Polignac number, because 8233778725155 - 2³ = 8233778725147 is a prime.

It is a super-2 number, since 2×8233778725155² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8233778725092 and 8233778725101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2936790 + ... + 5009220.

It is an arithmetic number, because the mean of its divisors is an integer number (594668819160).

Almost surely, 2^{8233778725155} is an apocalyptic number.

8233778725155 is a deficient number, since it is larger than the sum of its proper divisors (6038272934685).

8233778725155 is a wasteful number, since it uses less digits than its factorization.

8233778725155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160731 (or 2160728 counting only the distinct ones).

The product of its digits is 98784000, while the sum is 63.

The spelling of 8233778725155 in words is "eight trillion, two hundred thirty-three billion, seven hundred seventy-eight million, seven hundred twenty-five thousand, one hundred fifty-five".