200634736387 has 2 divisors, whose sum is σ = 200634736388. Its totient is φ = 200634736386.

The previous prime is 200634736331. The next prime is 200634736397. The reversal of 200634736387 is 783637436002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200634736387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200634736387.

It is not a weakly prime, because it can be changed into another prime (200634736397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100317368193 + 100317368194.

It is an arithmetic number, because the mean of its divisors is an integer number (100317368194).

Almost surely, 2^200634736387 is an apocalyptic number.

200634736387 is a deficient number, since it is larger than the sum of its proper divisors (1).

200634736387 is an equidigital number, since it uses as much as digits as its factorization.

200634736387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 200634736387 in words is "two hundred billion, six hundred thirty-four million, seven hundred thirty-six thousand, three hundred eighty-seven".