6746681340 has 72 divisors (see below), whose sum is σ = 23388499680. Its totient is φ = 1542098304.

The previous prime is 6746681339. The next prime is 6746681341. The reversal of 6746681340 is 431866476.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6746681339) and next prime (6746681341).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6746681341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2675995 + ... + 2678514.

Almost surely, 2^6746681340 is an apocalyptic number.

6746681340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6746681340 is an abundant number, since it is smaller than the sum of its proper divisors (16641818340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6746681340 is a wasteful number, since it uses less digits than its factorization.

6746681340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354531 (or 5354526 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 6746681340 is about 82138.1844211327. The cubic root of 6746681340 is about 1889.5718018778.

The spelling of 6746681340 in words is "six billion, seven hundred forty-six million, six hundred eighty-one thousand, three hundred forty".