20091830365829 has 16 divisors (see below), whose sum is σ = 20726534949120. Its totient is φ = 19464472861440.

The previous prime is 20091830365819. The next prime is 20091830365847. The reversal of 20091830365829 is 92856303819002.

It is a cyclic number.

It is not a de Polignac number, because 20091830365829 - 2⁴ = 20091830365813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091830365819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640562 + ... + 6371340.

It is an arithmetic number, because the mean of its divisors is an integer number (1295408434320).

Almost surely, 2^{20091830365829} is an apocalyptic number.

It is an amenable number.

20091830365829 is a deficient number, since it is larger than the sum of its proper divisors (634704583291).

20091830365829 is a wasteful number, since it uses less digits than its factorization.

20091830365829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731420.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 20091830365829 in words is "twenty trillion, ninety-one billion, eight hundred thirty million, three hundred sixty-five thousand, eight hundred twenty-nine".