129706934554 has 16 divisors (see below), whose sum is σ = 204900302880. Its totient is φ = 61410162960.

The previous prime is 129706934537. The next prime is 129706934557. The reversal of 129706934554 is 455439607921.

It is a junction number, because it is equal to n+sod(n) for n = 129706934495 and 129706934504.

It is not an unprimeable number, because it can be changed into a prime (129706934557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753292 + ... + 909319.

It is an arithmetic number, because the mean of its divisors is an integer number (12806268930).

Almost surely, 2^129706934554 is an apocalyptic number.

129706934554 is a deficient number, since it is larger than the sum of its proper divisors (75193368326).

129706934554 is a wasteful number, since it uses less digits than its factorization.

129706934554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664685.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 129706934554 in words is "one hundred twenty-nine billion, seven hundred six million, nine hundred thirty-four thousand, five hundred fifty-four".