6748562789 has 4 divisors (see below), whose sum is σ = 6751487820. Its totient is φ = 6745637760.

The previous prime is 6748562783. The next prime is 6748562791. The reversal of 6748562789 is 9872658476.

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 3792465889 + 2956096900 = 61583^2 + 54370^2 .

It is a cyclic number.

It is not a de Polignac number, because 6748562789 - 2⁴ = 6748562773 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 (6748562783) 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, 1459052 + ... + 1463669.

It is an arithmetic number, because the mean of its divisors is an integer number (1687871955).

Almost surely, 2^6748562789 is an apocalyptic number.

It is an amenable number.

6748562789 is a deficient number, since it is larger than the sum of its proper divisors (2925031).

6748562789 is a wasteful number, since it uses less digits than its factorization.

6748562789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925030.

The product of its digits is 40642560, while the sum is 62.

The square root of 6748562789 is about 82149.6365725376. The cubic root of 6748562789 is about 1889.7474340331.

The spelling of 6748562789 in words is "six billion, seven hundred forty-eight million, five hundred sixty-two thousand, seven hundred eighty-nine".