720700744862978 has 32 divisors (see below), whose sum is σ = 1180824327668160. Its totient is φ = 327175748887360.

The previous prime is 720700744862953. The next prime is 720700744863019. The reversal of 720700744862978 is 879268447007027.

720700744862978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1517733593 + ... + 1518208371.

It is an arithmetic number, because the mean of its divisors is an integer number (36900760239630).

Almost surely, 2^{720700744862978} is an apocalyptic number.

720700744862978 is a deficient number, since it is larger than the sum of its proper divisors (460123582805182).

720700744862978 is a wasteful number, since it uses less digits than its factorization.

720700744862978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562162.

The product of its (nonzero) digits is 531062784, while the sum is 71.

The spelling of 720700744862978 in words is "seven hundred twenty trillion, seven hundred billion, seven hundred forty-four million, eight hundred sixty-two thousand, nine hundred seventy-eight".