105178419756979 has 2 divisors, whose sum is σ = 105178419756980. Its totient is φ = 105178419756978.

The previous prime is 105178419756961. The next prime is 105178419757123. The reversal of 105178419756979 is 979657914871501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105178419756979 - 2³⁹ = 104628663943091 is a prime.

It is a super-2 number, since 2×105178419756979² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105178419756899 and 105178419756908.

It is not a weakly prime, because it can be changed into another prime (105178419756919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52589209878489 + 52589209878490.

It is an arithmetic number, because the mean of its divisors is an integer number (52589209878490).

Almost surely, 2^{105178419756979} is an apocalyptic number.

105178419756979 is a deficient number, since it is larger than the sum of its proper divisors (1).

105178419756979 is an equidigital number, since it uses as much as digits as its factorization.

105178419756979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200225600, while the sum is 79.

The spelling of 105178419756979 in words is "one hundred five trillion, one hundred seventy-eight billion, four hundred nineteen million, seven hundred fifty-six thousand, nine hundred seventy-nine".