720778877027 has 16 divisors (see below), whose sum is σ = 812001521664. Its totient is φ = 633856440000.

The previous prime is 720778877017. The next prime is 720778877053.

720778877027 is nontrivially palindromic in base 10.

720778877027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 720778877027 - 2¹⁴ = 720778860643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720778877017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402527 + ... + 1266327.

It is an arithmetic number, because the mean of its divisors is an integer number (50750095104).

Almost surely, 2^720778877027 is an apocalyptic number.

720778877027 is a deficient number, since it is larger than the sum of its proper divisors (91222644637).

720778877027 is a wasteful number, since it uses less digits than its factorization.

720778877027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866290.

The product of its (nonzero) digits is 30118144, while the sum is 62.

The spelling of 720778877027 in words is "seven hundred twenty billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, twenty-seven".