720926987753 has 8 divisors (see below), whose sum is σ = 835203086208. Its totient is φ = 609472521504.

The previous prime is 720926987723. The next prime is 720926987783. The reversal of 720926987753 is 357789629027.

It is an interprime number because it is at equal distance from previous prime (720926987723) and next prime (720926987783).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720926987753 - 2⁶ = 720926987689 is a prime.

It is a super-2 number, since 2×720926987753² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720926987753.

It is not an unprimeable number, because it can be changed into a prime (720926987723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705407501 + ... + 705408522.

It is an arithmetic number, because the mean of its divisors is an integer number (104400385776).

Almost surely, 2^720926987753 is an apocalyptic number.

720926987753 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

720926987753 is a deficient number, since it is larger than the sum of its proper divisors (114276098455).

720926987753 is a wasteful number, since it uses less digits than its factorization.

720926987753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410816103.

The product of its (nonzero) digits is 80015040, while the sum is 65.

The spelling of 720926987753 in words is "seven hundred twenty billion, nine hundred twenty-six million, nine hundred eighty-seven thousand, seven hundred fifty-three".