64443276102 has 16 divisors (see below), whose sum is σ = 132030127152. Its totient is φ = 20957162880.

The previous prime is 64443276097. The next prime is 64443276109. The reversal of 64443276102 is 20167234446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64443276109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130982023 + ... + 130982514.

It is an arithmetic number, because the mean of its divisors is an integer number (8251882947).

Almost surely, 2^64443276102 is an apocalyptic number.

64443276102 is an abundant number, since it is smaller than the sum of its proper divisors (67586851050).

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

64443276102 is a wasteful number, since it uses less digits than its factorization.

64443276102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261964583.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 64443276102 in words is "sixty-four billion, four hundred forty-three million, two hundred seventy-six thousand, one hundred two".