20129041802 has 32 divisors (see below), whose sum is σ = 30769569792. Its totient is φ = 9874792944.

The previous prime is 20129041771. The next prime is 20129041819. The reversal of 20129041802 is 20814092102.

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, 12103223 + ... + 12104885.

It is an arithmetic number, because the mean of its divisors is an integer number (961549056).

Almost surely, 2^20129041802 is an apocalyptic number.

20129041802 is a deficient number, since it is larger than the sum of its proper divisors (10640527990).

20129041802 is a wasteful number, since it uses less digits than its factorization.

20129041802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 20129041802 in words is "twenty billion, one hundred twenty-nine million, forty-one thousand, eight hundred two".