64613879744 has 14 divisors (see below), whose sum is σ = 128218167744. Its totient is φ = 32306939840.

The previous prime is 64613879719. The next prime is 64613879819. The reversal of 64613879744 is 44797831646.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 504795872 + ... + 504795999.

Almost surely, 2^64613879744 is an apocalyptic number.

64613879744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64613879744 is a deficient number, since it is larger than the sum of its proper divisors (63604288000).

64613879744 is a wasteful number, since it uses less digits than its factorization.

64613879744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009591883 (or 1009591873 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 59.

The spelling of 64613879744 in words is "sixty-four billion, six hundred thirteen million, eight hundred seventy-nine thousand, seven hundred forty-four".