200239647451 has 4 divisors (see below), whose sum is σ = 200256286552. Its totient is φ = 200223008352.

The previous prime is 200239647449. The next prime is 200239647469. The reversal of 200239647451 is 154746932002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200239647451 - 2¹ = 200239647449 is a prime.

It is a super-2 number, since 2×200239647451² (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 = 200239647398 and 200239647407.

It is not an unprimeable number, because it can be changed into a prime (200239647401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8301486 + ... + 8325571.

It is an arithmetic number, because the mean of its divisors is an integer number (50064071638).

Almost surely, 2^200239647451 is an apocalyptic number.

200239647451 is a deficient number, since it is larger than the sum of its proper divisors (16639101).

200239647451 is a wasteful number, since it uses less digits than its factorization.

200239647451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16639100.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 200239647451 in words is "two hundred billion, two hundred thirty-nine million, six hundred forty-seven thousand, four hundred fifty-one".