6942740545 has 24 divisors (see below), whose sum is σ = 9028406016. Its totient is φ = 5122997568.

The previous prime is 6942740507. The next prime is 6942740549. The reversal of 6942740545 is 5450472496.

It is not a de Polignac number, because 6942740545 - 2⁹ = 6942740033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6942740495 and 6942740504.

It is not an unprimeable number, because it can be changed into a prime (6942740549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1538182 + ... + 1542688.

It is an arithmetic number, because the mean of its divisors is an integer number (376183584).

Almost surely, 2^6942740545 is an apocalyptic number.

6942740545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6942740545 is a deficient number, since it is larger than the sum of its proper divisors (2085665471).

6942740545 is a wasteful number, since it uses less digits than its factorization.

6942740545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361 (or 6348 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 6942740545 is about 83323.1093094827. The cubic root of 6942740545 is about 1907.7010199216.

The spelling of 6942740545 in words is "six billion, nine hundred forty-two million, seven hundred forty thousand, five hundred forty-five".