6171970420 has 432 divisors, whose sum is σ = 18095422464. Its totient is φ = 1756339200.

The previous prime is 6171970381. The next prime is 6171970459. The reversal of 6171970420 is 240791716.

It is an interprime number because it is at equal distance from previous prime (6171970381) and next prime (6171970459).

It is a self number, because there is not a number n which added to its sum of digits gives 6171970420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 84547504 + ... + 84547576.

It is an arithmetic number, because the mean of its divisors is an integer number (41887552).

Almost surely, 2^6171970420 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 6171970420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9047711232).

6171970420 is an abundant number, since it is smaller than the sum of its proper divisors (11923452044).

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

6171970420 is a wasteful number, since it uses less digits than its factorization.

6171970420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 6171970420 is about 78561.8891066145. The cubic root of 6171970420 is about 1834.3179333436.

The spelling of 6171970420 in words is "six billion, one hundred seventy-one million, nine hundred seventy thousand, four hundred twenty".