6738491280 has 80 divisors (see below), whose sum is σ = 22118120064. Its totient is φ = 1691228160.

The previous prime is 6738491267. The next prime is 6738491293. The reversal of 6738491280 is 821948376.

It is an interprime number because it is at equal distance from previous prime (6738491267) and next prime (6738491293).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821716 + ... + 829875.

Almost surely, 2^6738491280 is an apocalyptic number.

6738491280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6738491280 is an abundant number, since it is smaller than the sum of its proper divisors (15379628784).

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

6738491280 is a wasteful number, since it uses less digits than its factorization.

6738491280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651624 (or 1651618 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 6738491280 is about 82088.3139064264. The cubic root of 6738491280 is about 1888.8068839344.

The spelling of 6738491280 in words is "six billion, seven hundred thirty-eight million, four hundred ninety-one thousand, two hundred eighty".