719161111397 has 4 divisors (see below), whose sum is σ = 719322471276. Its totient is φ = 718999751520.

The previous prime is 719161111381. The next prime is 719161111441. The reversal of 719161111397 is 793111161917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793111161917 = 22303 ⋅35560739.

It can be written as a sum of positive squares in 2 ways, for example, as 403175471521 + 315985639876 = 634961^2 + 562126^2 .

It is a cyclic number.

It is not a de Polignac number, because 719161111397 - 2⁴ = 719161111381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719161113397) 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 3 ways as a sum of consecutive naturals, for example, 80673254 + ... + 80682167.

It is an arithmetic number, because the mean of its divisors is an integer number (179830617819).

Almost surely, 2^719161111397 is an apocalyptic number.

It is an amenable number.

719161111397 is a deficient number, since it is larger than the sum of its proper divisors (161359879).

719161111397 is a wasteful number, since it uses less digits than its factorization.

719161111397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161359878.

The product of its digits is 71442, while the sum is 47.

The spelling of 719161111397 in words is "seven hundred nineteen billion, one hundred sixty-one million, one hundred eleven thousand, three hundred ninety-seven".