719641268 has 12 divisors (see below), whose sum is σ = 1293409572. Its totient is φ = 350095680.

The previous prime is 719641253. The next prime is 719641271. The reversal of 719641268 is 862146917.

It can be written as a sum of positive squares in 2 ways, for example, as 565583524 + 154057744 = 23782^2 + 12412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2431073 + ... + 2431368.

It is an arithmetic number, because the mean of its divisors is an integer number (107784131).

Almost surely, 2^719641268 is an apocalyptic number.

It is an amenable number.

719641268 is a deficient number, since it is larger than the sum of its proper divisors (573768304).

719641268 is a wasteful number, since it uses less digits than its factorization.

719641268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862482 (or 4862480 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 719641268 is about 26826.1303210135. The cubic root of 719641268 is about 896.1320705749.

The spelling of 719641268 in words is "seven hundred nineteen million, six hundred forty-one thousand, two hundred sixty-eight".