6971126840 has 64 divisors (see below), whose sum is σ = 15913497600. Its totient is φ = 2748004992.

The previous prime is 6971126801. The next prime is 6971126861. The reversal of 6971126840 is 486211796.

It is a junction number, because it is equal to n+sod(n) for n = 6971126791 and 6971126800.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1455089 + ... + 1459871.

It is an arithmetic number, because the mean of its divisors is an integer number (248648400).

Almost surely, 2^6971126840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6971126840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7956748800).

6971126840 is an abundant number, since it is smaller than the sum of its proper divisors (8942370760).

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

6971126840 is a wasteful number, since it uses less digits than its factorization.

6971126840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316 (or 5312 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6971126840 is about 83493.2742201430. The cubic root of 6971126840 is about 1910.2974455213.

The spelling of 6971126840 in words is "six billion, nine hundred seventy-one million, one hundred twenty-six thousand, eight hundred forty".