720000099977 has 2 divisors, whose sum is σ = 720000099978. Its totient is φ = 720000099976.

The previous prime is 720000099877. The next prime is 720000100103. The reversal of 720000099977 is 779990000027.

720000099977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438735341641 + 281264758336 = 662371^2 + 530344^2 .

It is a cyclic number.

It is not a de Polignac number, because 720000099977 - 2²⁴ = 719983322761 is a prime.

It is not a weakly prime, because it can be changed into another prime (720000099277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360000049988 + 360000049989.

It is an arithmetic number, because the mean of its divisors is an integer number (360000049989).

Almost surely, 2^720000099977 is an apocalyptic number.

It is an amenable number.

720000099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

720000099977 is an equidigital number, since it uses as much as digits as its factorization.

720000099977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500094, while the sum is 50.

The spelling of 720000099977 in words is "seven hundred twenty billion, ninety-nine thousand, nine hundred seventy-seven".