129393742390 has 32 divisors (see below), whose sum is σ = 262278466560. Its totient is φ = 45534453600.

The previous prime is 129393742381. The next prime is 129393742409. The reversal of 129393742390 is 93247393921.

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 15 ways as a sum of consecutive naturals, for example, 18969280 + ... + 18976099.

It is an arithmetic number, because the mean of its divisors is an integer number (8196202080).

Almost surely, 2^129393742390 is an apocalyptic number.

129393742390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129393742390 is an abundant number, since it is smaller than the sum of its proper divisors (132884724170).

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

129393742390 is a wasteful number, since it uses less digits than its factorization.

129393742390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37945428.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 129393742390 in words is "one hundred twenty-nine billion, three hundred ninety-three million, seven hundred forty-two thousand, three hundred ninety".