129157560487 has 2 divisors, whose sum is σ = 129157560488. Its totient is φ = 129157560486.

The previous prime is 129157560481. The next prime is 129157560509. The reversal of 129157560487 is 784065751921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129157560487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129157560481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64578780243 + 64578780244.

It is an arithmetic number, because the mean of its divisors is an integer number (64578780244).

Almost surely, 2^129157560487 is an apocalyptic number.

129157560487 is a deficient number, since it is larger than the sum of its proper divisors (1).

129157560487 is an equidigital number, since it uses as much as digits as its factorization.

129157560487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 129157560487 in words is "one hundred twenty-nine billion, one hundred fifty-seven million, five hundred sixty thousand, four hundred eighty-seven".