64876871406 has 16 divisors (see below), whose sum is σ = 129884686848. Its totient is φ = 21603799800.

The previous prime is 64876871387. The next prime is 64876871441. The reversal of 64876871406 is 60417867846.

It is a happy number.

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, 5449560 + ... + 5461451.

It is an arithmetic number, because the mean of its divisors is an integer number (8117792928).

Almost surely, 2^64876871406 is an apocalyptic number.

64876871406 is an abundant number, since it is smaller than the sum of its proper divisors (65007815442).

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

64876871406 is a wasteful number, since it uses less digits than its factorization.

64876871406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10912007.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 64876871406 in words is "sixty-four billion, eight hundred seventy-six million, eight hundred seventy-one thousand, four hundred six".