64887276348 has 18 divisors (see below), whose sum is σ = 164020615304. Its totient is φ = 21629092104.

The previous prime is 64887276343. The next prime is 64887276373. The reversal of 64887276348 is 84367278846.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64887276341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 901212136 + ... + 901212207.

Almost surely, 2^64887276348 is an apocalyptic number.

It is an amenable number.

64887276348 is an abundant number, since it is smaller than the sum of its proper divisors (99133338956).

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

64887276348 is a wasteful number, since it uses less digits than its factorization.

64887276348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802424353 (or 1802424348 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 63.

It can be divided in two parts, 6488 and 7276348, that added together give a triangular number (7282836 = T₃₈₁₆).

The spelling of 64887276348 in words is "sixty-four billion, eight hundred eighty-seven million, two hundred seventy-six thousand, three hundred forty-eight".