129446800351 has 4 divisors (see below), whose sum is σ = 141214691304. Its totient is φ = 117678909400.

The previous prime is 129446800321. The next prime is 129446800363. The reversal of 129446800351 is 153008644921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129446800351 - 2²⁵ = 129413245919 is a prime.

It is a super-2 number, since 2×129446800351² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129446800298 and 129446800307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129446800321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5883945460 + ... + 5883945481.

It is an arithmetic number, because the mean of its divisors is an integer number (35303672826).

Almost surely, 2^129446800351 is an apocalyptic number.

129446800351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129446800351 is a deficient number, since it is larger than the sum of its proper divisors (11767890953).

129446800351 is a wasteful number, since it uses less digits than its factorization.

129446800351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11767890952.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 129446800351 in words is "one hundred twenty-nine billion, four hundred forty-six million, eight hundred thousand, three hundred fifty-one".