129316970890 has 32 divisors (see below), whose sum is σ = 240420856320. Its totient is φ = 50028686400.

The previous prime is 129316970869. The next prime is 129316970927. The reversal of 129316970890 is 98079613921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407745 + ... + 651835.

It is an arithmetic number, because the mean of its divisors is an integer number (7513151760).

Almost surely, 2^129316970890 is an apocalyptic number.

129316970890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129316970890 is a deficient number, since it is larger than the sum of its proper divisors (111103885430).

129316970890 is a wasteful number, since it uses less digits than its factorization.

129316970890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245838.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 129316970890 in words is "one hundred twenty-nine billion, three hundred sixteen million, nine hundred seventy thousand, eight hundred ninety".