6742879145 has 4 divisors (see below), whose sum is σ = 8091454980. Its totient is φ = 5394303312.

The previous prime is 6742879141. The next prime is 6742879153. The reversal of 6742879145 is 5419782476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1107824656 + 5635054489 = 33284^2 + 75067^2 .

It is a cyclic number.

It is not a de Polignac number, because 6742879145 - 2² = 6742879141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6742879141) 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, 674287910 + ... + 674287919.

It is an arithmetic number, because the mean of its divisors is an integer number (2022863745).

Almost surely, 2^6742879145 is an apocalyptic number.

It is an amenable number.

6742879145 is a deficient number, since it is larger than the sum of its proper divisors (1348575835).

6742879145 is a wasteful number, since it uses less digits than its factorization.

6742879145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348575834.

The product of its digits is 3386880, while the sum is 53.

The square root of 6742879145 is about 82115.0360469993. The cubic root of 6742879145 is about 1889.2167695211.

The spelling of 6742879145 in words is "six billion, seven hundred forty-two million, eight hundred seventy-nine thousand, one hundred forty-five".