8139223313235 has 192 divisors, whose sum is σ = 17718198930432. Its totient is φ = 3499137294336.

The previous prime is 8139223313233. The next prime is 8139223313323. The reversal of 8139223313235 is 5323133229318.

8139223313235 is a `hidden beast` number, since 8 + 1 + 3 + 92 + 233 + 1 + 323 + 5 = 666.

It is not a de Polignac number, because 8139223313235 - 2¹ = 8139223313233 is a prime.

It is a super-2 number, since 2×8139223313235² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8139223313233) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 187505044 + ... + 187548446.

It is an arithmetic number, because the mean of its divisors is an integer number (92282286096).

Almost surely, 2^{8139223313235} is an apocalyptic number.

8139223313235 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8139223313235 is an abundant number, since it is smaller than the sum of its proper divisors (9578975617197).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8139223313235 is a wasteful number, since it uses less digits than its factorization.

8139223313235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44744 (or 44732 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 8139223313235 in words is "eight trillion, one hundred thirty-nine billion, two hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-five".