204748901851 has 8 divisors (see below), whose sum is σ = 222976333440. Its totient is φ = 186875401152.

The previous prime is 204748901849. The next prime is 204748901891. The reversal of 204748901851 is 158109847402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204748901851 - 2¹ = 204748901849 is a prime.

It is a super-2 number, since 2×204748901851² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204748901795 and 204748901804.

It is not an unprimeable number, because it can be changed into a prime (204748901891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88481515 + ... + 88483828.

It is an arithmetic number, because the mean of its divisors is an integer number (27872041680).

Almost surely, 2^204748901851 is an apocalyptic number.

204748901851 is a deficient number, since it is larger than the sum of its proper divisors (18227431589).

204748901851 is a wasteful number, since it uses less digits than its factorization.

204748901851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176965445.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 204748901851 in words is "two hundred four billion, seven hundred forty-eight million, nine hundred one thousand, eight hundred fifty-one".