204451264653 has 8 divisors (see below), whose sum is σ = 272825685888. Its totient is φ = 136188843264.

The previous prime is 204451264607. The next prime is 204451264757. The reversal of 204451264653 is 356462154402.

It is a happy number.

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

It is not a de Polignac number, because 204451264653 - 2⁹ = 204451264141 is a prime.

It is a super-2 number, since 2×204451264653² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204451265653) 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, 27995701 + ... + 28003002.

It is an arithmetic number, because the mean of its divisors is an integer number (34103210736).

Almost surely, 2^204451264653 is an apocalyptic number.

It is an amenable number.

204451264653 is a deficient number, since it is larger than the sum of its proper divisors (68374421235).

204451264653 is a wasteful number, since it uses less digits than its factorization.

204451264653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55999923.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 204451264653 in words is "two hundred four billion, four hundred fifty-one million, two hundred sixty-four thousand, six hundred fifty-three".