6981270720 has 112 divisors (see below), whose sum is σ = 22183575648. Its totient is φ = 1860157440.

The previous prime is 6981270697. The next prime is 6981270739. The reversal of 6981270720 is 270721896.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 1669272 + ... + 1673448.

Almost surely, 2^6981270720 is an apocalyptic number.

6981270720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6981270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11091787824).

6981270720 is an abundant number, since it is smaller than the sum of its proper divisors (15202304928).

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

6981270720 is a wasteful number, since it uses less digits than its factorization.

6981270720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938 (or 5928 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 6981270720 is about 83553.9988271058. The cubic root of 6981270720 is about 1911.2235720532.

The spelling of 6981270720 in words is "six billion, nine hundred eighty-one million, two hundred seventy thousand, seven hundred twenty".