719759944721 has 8 divisors (see below), whose sum is σ = 723380954184. Its totient is φ = 716145295360.

The previous prime is 719759944663. The next prime is 719759944747. The reversal of 719759944721 is 127449957917.

It can be written as a sum of positive squares in 4 ways, for example, as 177127348225 + 542632596496 = 420865^2 + 736636^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 719759944721 - 2¹⁴ = 719759928337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (719759044721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363040 + ... + 1815873.

It is an arithmetic number, because the mean of its divisors is an integer number (90422619273).

Almost surely, 2^719759944721 is an apocalyptic number.

It is an amenable number.

719759944721 is a deficient number, since it is larger than the sum of its proper divisors (3621009463).

719759944721 is a wasteful number, since it uses less digits than its factorization.

719759944721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180051.

The product of its digits is 40007520, while the sum is 65.

The spelling of 719759944721 in words is "seven hundred nineteen billion, seven hundred fifty-nine million, nine hundred forty-four thousand, seven hundred twenty-one".