204988067951 has 16 divisors (see below), whose sum is σ = 213786513408. Its totient is φ = 196328620800.

The previous prime is 204988067929. The next prime is 204988067957. The reversal of 204988067951 is 159760889402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204988067951 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 (204988067957) 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, 5399606 + ... + 5437436.

It is an arithmetic number, because the mean of its divisors is an integer number (13361657088).

Almost surely, 2^204988067951 is an apocalyptic number.

204988067951 is a deficient number, since it is larger than the sum of its proper divisors (8798445457).

204988067951 is a wasteful number, since it uses less digits than its factorization.

204988067951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39662.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 204988067951 in words is "two hundred four billion, nine hundred eighty-eight million, sixty-seven thousand, nine hundred fifty-one".