868738155 has 16 divisors (see below), whose sum is σ = 1390398720. Its totient is φ = 463187808.

The previous prime is 868738109. The next prime is 868738163. The reversal of 868738155 is 551837868.

It is not a de Polignac number, because 868738155 - 2¹⁴ = 868721771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868738098 and 868738107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60786 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (86899920).

Almost surely, 2^868738155 is an apocalyptic number.

868738155 is a deficient number, since it is larger than the sum of its proper divisors (521660565).

868738155 is a wasteful number, since it uses less digits than its factorization.

868738155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17410.

The product of its digits is 1612800, while the sum is 51.

The square root of 868738155 is about 29474.3643697366. The cubic root of 868738155 is about 954.1785119671.

The spelling of 868738155 in words is "eight hundred sixty-eight million, seven hundred thirty-eight thousand, one hundred fifty-five".