204974129801 has 32 divisors (see below), whose sum is σ = 259276930560. Its totient is φ = 157888659456.

The previous prime is 204974129693. The next prime is 204974129851. The reversal of 204974129801 is 108921479402.

It is a cyclic number.

It is not a de Polignac number, because 204974129801 - 2³⁴ = 187794260617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204974129851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1491545 + ... + 1623161.

It is an arithmetic number, because the mean of its divisors is an integer number (8102404080).

Almost surely, 2^204974129801 is an apocalyptic number.

It is an amenable number.

204974129801 is a deficient number, since it is larger than the sum of its proper divisors (54302800759).

204974129801 is a wasteful number, since it uses less digits than its factorization.

204974129801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132233.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 204974129801 in words is "two hundred four billion, nine hundred seventy-four million, one hundred twenty-nine thousand, eight hundred one".