64883352481854 has 32 divisors (see below), whose sum is σ = 135520367238144. Its totient is φ = 20670390887520.

The previous prime is 64883352481817. The next prime is 64883352481897. The reversal of 64883352481854 is 45818425338846.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193636902 + ... + 193971689.

It is an arithmetic number, because the mean of its divisors is an integer number (4235011476192).

Almost surely, 2^{64883352481854} is an apocalyptic number.

64883352481854 is an abundant number, since it is smaller than the sum of its proper divisors (70637014756290).

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

64883352481854 is a wasteful number, since it uses less digits than its factorization.

64883352481854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387609832.

The product of its digits is 707788800, while the sum is 69.

The spelling of 64883352481854 in words is "sixty-four trillion, eight hundred eighty-three billion, three hundred fifty-two million, four hundred eighty-one thousand, eight hundred fifty-four".