720378535378007 has 32 divisors (see below), whose sum is σ = 805087745625600. Its totient is φ = 639037384473600.

The previous prime is 720378535377983. The next prime is 720378535378031. The reversal of 720378535378007 is 700873535873027.

It is an interprime number because it is at equal distance from previous prime (720378535377983) and next prime (720378535378031).

It is a cyclic number.

It is not a de Polignac number, because 720378535378007 - 2⁸ = 720378535377751 is a prime.

It is a super-3 number, since 3×720378535378007³ (a number of 46 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720378535378037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1088053094 + ... + 1088714972.

It is an arithmetic number, because the mean of its divisors is an integer number (25158992050800).

Almost surely, 2^{720378535378007} is an apocalyptic number.

720378535378007 is a deficient number, since it is larger than the sum of its proper divisors (84709210247593).

720378535378007 is a wasteful number, since it uses less digits than its factorization.

720378535378007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674327.

The product of its (nonzero) digits is 207446400, while the sum is 65.

The spelling of 720378535378007 in words is "seven hundred twenty trillion, three hundred seventy-eight billion, five hundred thirty-five million, three hundred seventy-eight thousand, seven".