6374886840 has 256 divisors, whose sum is σ = 25564032000. Its totient is φ = 1380395520.

The previous prime is 6374886823. The next prime is 6374886853. The reversal of 6374886840 is 486884736.

6374886840 is a `hidden beast` number, since 63 + 7 + 488 + 68 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121450 + ... + 165830.

It is an arithmetic number, because the mean of its divisors is an integer number (99859500).

Almost surely, 2^6374886840 is an apocalyptic number.

6374886840 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 6374886840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12782016000).

6374886840 is an abundant number, since it is smaller than the sum of its proper divisors (19189145160).

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

6374886840 is a wasteful number, since it uses less digits than its factorization.

6374886840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44427 (or 44417 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The square root of 6374886840 is about 79842.8884748041. Note that the first 3 decimals coincide. The cubic root of 6374886840 is about 1854.2039134332.

The spelling of 6374886840 in words is "six billion, three hundred seventy-four million, eight hundred eighty-six thousand, eight hundred forty".