108278578069 has 2 divisors, whose sum is σ = 108278578070. Its totient is φ = 108278578068.

The previous prime is 108278578039. The next prime is 108278578087. The reversal of 108278578069 is 960875872801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91827180900 + 16451397169 = 303030^2 + 128263^2 .

It is a cyclic number.

It is not a de Polignac number, because 108278578069 - 2¹³ = 108278569877 is a prime.

It is a super-2 number, since 2×108278578069² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108278577998 and 108278578016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108278578019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54139289034 + 54139289035.

It is an arithmetic number, because the mean of its divisors is an integer number (54139289035).

Almost surely, 2^108278578069 is an apocalyptic number.

It is an amenable number.

108278578069 is a deficient number, since it is larger than the sum of its proper divisors (1).

108278578069 is an equidigital number, since it uses as much as digits as its factorization.

108278578069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 108278578069 in words is "one hundred eight billion, two hundred seventy-eight million, five hundred seventy-eight thousand, sixty-nine".