129027861390 has 16 divisors (see below), whose sum is σ = 309666867408. Its totient is φ = 34407429696.

The previous prime is 129027861367. The next prime is 129027861407. The reversal of 129027861390 is 93168720921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150464327 + ... + 2150464386.

It is an arithmetic number, because the mean of its divisors is an integer number (19354179213).

Almost surely, 2^129027861390 is an apocalyptic number.

129027861390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129027861390 is an abundant number, since it is smaller than the sum of its proper divisors (180639006018).

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

129027861390 is a wasteful number, since it uses less digits than its factorization.

129027861390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300928723.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 129027861390 in words is "one hundred twenty-nine billion, twenty-seven million, eight hundred sixty-one thousand, three hundred ninety".