64813871554 has 8 divisors (see below), whose sum is σ = 97318914048. Its totient is φ = 32374233540.

The previous prime is 64813871537. The next prime is 64813871597. The reversal of 64813871554 is 45517831846.

64813871554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16348642 + ... + 16352605.

It is an arithmetic number, because the mean of its divisors is an integer number (12164864256).

Almost surely, 2^64813871554 is an apocalyptic number.

64813871554 is a deficient number, since it is larger than the sum of its proper divisors (32505042494).

64813871554 is a wasteful number, since it uses less digits than its factorization.

64813871554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32702240.

The product of its digits is 3225600, while the sum is 52.

The spelling of 64813871554 in words is "sixty-four billion, eight hundred thirteen million, eight hundred seventy-one thousand, five hundred fifty-four".