6471275878 has 16 divisors (see below), whose sum is σ = 9886536000. Its totient is φ = 3175931752.

The previous prime is 6471275861. The next prime is 6471275891. The reversal of 6471275878 is 8785721746.

It is a super-2 number, since 2×6471275878² = 83754822978369341768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36153 + ... + 119371.

It is an arithmetic number, because the mean of its divisors is an integer number (617908500).

Almost surely, 2^6471275878 is an apocalyptic number.

6471275878 is a deficient number, since it is larger than the sum of its proper divisors (3415260122).

6471275878 is a wasteful number, since it uses less digits than its factorization.

6471275878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83939.

The product of its digits is 5268480, while the sum is 55.

The square root of 6471275878 is about 80444.2408006937. The cubic root of 6471275878 is about 1863.5024649977.

The spelling of 6471275878 in words is "six billion, four hundred seventy-one million, two hundred seventy-five thousand, eight hundred seventy-eight".