1000720800949 has 2 divisors, whose sum is σ = 1000720800950. Its totient is φ = 1000720800948.

The previous prime is 1000720800931. The next prime is 1000720800967. The reversal of 1000720800949 is 9490080270001.

It is a balanced prime because it is at equal distance from previous prime (1000720800931) and next prime (1000720800967).

It can be written as a sum of positive squares in only one way, i.e., 983538310225 + 17182490724 = 991735^2 + 131082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000720800949 - 2⁵ = 1000720800917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000720800049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500360400474 + 500360400475.

It is an arithmetic number, because the mean of its divisors is an integer number (500360400475).

Almost surely, 2^{1000720800949} is an apocalyptic number.

It is an amenable number.

1000720800949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000720800949 is an equidigital number, since it uses as much as digits as its factorization.

1000720800949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1000720800949 in words is "one trillion, seven hundred twenty million, eight hundred thousand, nine hundred forty-nine".