6749597493 has 6 divisors (see below), whose sum is σ = 9749418614. Its totient is φ = 4499731656.

The previous prime is 6749597483. The next prime is 6749597501. The reversal of 6749597493 is 3947959476.

It can be written as a sum of positive squares in only one way, i.e., 5109104484 + 1640493009 = 71478^2 + 40503^2 .

It is not a de Polignac number, because 6749597493 - 2⁶ = 6749597429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6749597493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749597453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374977630 + ... + 374977647.

Almost surely, 2^6749597493 is an apocalyptic number.

It is an amenable number.

6749597493 is a deficient number, since it is larger than the sum of its proper divisors (2999821121).

6749597493 is a wasteful number, since it uses less digits than its factorization.

6749597493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749955283 (or 749955280 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The square root of 6749597493 is about 82155.9340096624. The cubic root of 6749597493 is about 1889.8440091295.

The spelling of 6749597493 in words is "six billion, seven hundred forty-nine million, five hundred ninety-seven thousand, four hundred ninety-three".