200372732981 has 4 divisors (see below), whose sum is σ = 200529643212. Its totient is φ = 200215822752.

The previous prime is 200372732971. The next prime is 200372732983. The reversal of 200372732981 is 189237273002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 157264592356 + 43108140625 = 396566^2 + 207625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200372732981 is a prime.

It is a super-2 number, since 2×200372732981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200372732983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78453200 + ... + 78455753.

It is an arithmetic number, because the mean of its divisors is an integer number (50132410803).

Almost surely, 2^200372732981 is an apocalyptic number.

It is an amenable number.

200372732981 is a deficient number, since it is larger than the sum of its proper divisors (156910231).

200372732981 is a wasteful number, since it uses less digits than its factorization.

200372732981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156910230.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 200372732981 in words is "two hundred billion, three hundred seventy-two million, seven hundred thirty-two thousand, nine hundred eighty-one".