6481279476 has 192 divisors, whose sum is σ = 19817602560. Its totient is φ = 1815944832.

The previous prime is 6481279471. The next prime is 6481279481. The reversal of 6481279476 is 6749721846.

6481279476 is a `hidden beast` number, since 6 + 48 + 127 + 9 + 476 = 666.

It is an interprime number because it is at equal distance from previous prime (6481279471) and next prime (6481279481).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481279471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3244510 + ... + 3246506.

It is an arithmetic number, because the mean of its divisors is an integer number (103216680).

Almost surely, 2^6481279476 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 6481279476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9908801280).

6481279476 is an abundant number, since it is smaller than the sum of its proper divisors (13336323084).

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

6481279476 is a wasteful number, since it uses less digits than its factorization.

6481279476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2062 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 6481279476 is about 80506.3940069359. The cubic root of 6481279476 is about 1864.4622001089.

The spelling of 6481279476 in words is "six billion, four hundred eighty-one million, two hundred seventy-nine thousand, four hundred seventy-six".