129378538759 has 2 divisors, whose sum is σ = 129378538760. Its totient is φ = 129378538758.

The previous prime is 129378538753. The next prime is 129378538771. The reversal of 129378538759 is 957835873921.

It is a weak prime.

It is an emirp because it is prime and its reverse (957835873921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129378538759 - 2³¹ = 127231055111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129378538694 and 129378538703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129378538753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64689269379 + 64689269380.

It is an arithmetic number, because the mean of its divisors is an integer number (64689269380).

Almost surely, 2^129378538759 is an apocalyptic number.

129378538759 is a deficient number, since it is larger than the sum of its proper divisors (1).

129378538759 is an equidigital number, since it uses as much as digits as its factorization.

129378538759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 67.

The spelling of 129378538759 in words is "one hundred twenty-nine billion, three hundred seventy-eight million, five hundred thirty-eight thousand, seven hundred fifty-nine".