78105606107 has 2 divisors, whose sum is σ = 78105606108. Its totient is φ = 78105606106.

The previous prime is 78105606077. The next prime is 78105606119. The reversal of 78105606107 is 70160650187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78105606107 - 2⁶ = 78105606043 is a prime.

It is a super-2 number, since 2×78105606107² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78105606407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39052803053 + 39052803054.

It is an arithmetic number, because the mean of its divisors is an integer number (39052803054).

Almost surely, 2^78105606107 is an apocalyptic number.

78105606107 is a deficient number, since it is larger than the sum of its proper divisors (1).

78105606107 is an equidigital number, since it uses as much as digits as its factorization.

78105606107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 78105606107 in words is "seventy-eight billion, one hundred five million, six hundred six thousand, one hundred seven".