129797784214 has 16 divisors (see below), whose sum is σ = 228524285088. Its totient is φ = 54124172352.

The previous prime is 129797784199. The next prime is 129797784217. The reversal of 129797784214 is 412487797921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129797784217) 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, 125286919 + ... + 125287954.

It is an arithmetic number, because the mean of its divisors is an integer number (14282767818).

Almost surely, 2^129797784214 is an apocalyptic number.

129797784214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129797784214 is a deficient number, since it is larger than the sum of its proper divisors (98726500874).

129797784214 is a wasteful number, since it uses less digits than its factorization.

129797784214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250574919.

The product of its digits is 14224896, while the sum is 61.

The spelling of 129797784214 in words is "one hundred twenty-nine billion, seven hundred ninety-seven million, seven hundred eighty-four thousand, two hundred fourteen".