7145379719 has 4 divisors (see below), whose sum is σ = 7146743160. Its totient is φ = 7144016280.

The previous prime is 7145379713. The next prime is 7145379763. The reversal of 7145379719 is 9179735417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7145379719 - 2²⁰ = 7144331143 is a prime.

It is a super-2 number, since 2×7145379719² (a number of 21 digits) contains 22 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 (7145379713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673829 + ... + 684350.

It is an arithmetic number, because the mean of its divisors is an integer number (1786685790).

Almost surely, 2^7145379719 is an apocalyptic number.

7145379719 is a deficient number, since it is larger than the sum of its proper divisors (1363441).

7145379719 is a wasteful number, since it uses less digits than its factorization.

7145379719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363440.

The product of its digits is 1666980, while the sum is 53.

The square root of 7145379719 is about 84530.3479171830. The cubic root of 7145379719 is about 1926.0834711553.

The spelling of 7145379719 in words is "seven billion, one hundred forty-five million, three hundred seventy-nine thousand, seven hundred nineteen".