129768534702 has 16 divisors (see below), whose sum is σ = 288374521680. Its totient is φ = 43256178216.

The previous prime is 129768534683. The next prime is 129768534703. The reversal of 129768534702 is 207435867921.

It is a happy number.

129768534702 is a `hidden beast` number, since 1 + 2 + 97 + 6 + 85 + 3 + 470 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 2403121013 = 129768534702 / (1 + 2 + 9 + 7 + 6 + 8 + 5 + 3 + 4 + 7 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129768534703) 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, 1201560453 + ... + 1201560560.

It is an arithmetic number, because the mean of its divisors is an integer number (18023407605).

It is a 1-persistent number, because it is pandigital, but 2⋅129768534702 = 259537069404 is not.

Almost surely, 2^129768534702 is an apocalyptic number.

129768534702 is an abundant number, since it is smaller than the sum of its proper divisors (158605986978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129768534702 is a wasteful number, since it uses less digits than its factorization.

129768534702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403121024 (or 2403121018 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

Adding to 129768534702 its sum of digits (54), we get a square (129768534756 = 360234²).

The spelling of 129768534702 in words is "one hundred twenty-nine billion, seven hundred sixty-eight million, five hundred thirty-four thousand, seven hundred two".