720442512107 has 4 divisors (see below), whose sum is σ = 758360539080. Its totient is φ = 682524485136.

The previous prime is 720442512103. The next prime is 720442512113. The reversal of 720442512107 is 701215244027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701215244027 = 17 ⋅41247955531.

It is a cyclic number.

It is not a de Polignac number, because 720442512107 - 2² = 720442512103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720442512103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18959013458 + ... + 18959013495.

It is an arithmetic number, because the mean of its divisors is an integer number (189590134770).

Almost surely, 2^720442512107 is an apocalyptic number.

720442512107 is a deficient number, since it is larger than the sum of its proper divisors (37918026973).

720442512107 is a wasteful number, since it uses less digits than its factorization.

720442512107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37918026972.

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 720442512107 in words is "seven hundred twenty billion, four hundred forty-two million, five hundred twelve thousand, one hundred seven".