906200941991 has 2 divisors, whose sum is σ = 906200941992. Its totient is φ = 906200941990.

The previous prime is 906200941963. The next prime is 906200942021. The reversal of 906200941991 is 199149002609.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906200941991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (906200941951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453100470995 + 453100470996.

It is an arithmetic number, because the mean of its divisors is an integer number (453100470996).

Almost surely, 2^906200941991 is an apocalyptic number.

906200941991 is a deficient number, since it is larger than the sum of its proper divisors (1).

906200941991 is an equidigital number, since it uses as much as digits as its factorization.

906200941991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 50.

The spelling of 906200941991 in words is "nine hundred six billion, two hundred million, nine hundred forty-one thousand, nine hundred ninety-one".