64632514612 has 6 divisors (see below), whose sum is σ = 113106900578. Its totient is φ = 32316257304.

The previous prime is 64632514601. The next prime is 64632514619. The reversal of 64632514612 is 21641523646.

It can be written as a sum of positive squares in only one way, i.e., 38594174116 + 26038340496 = 196454^2 + 161364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64632514619) 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 as a sum of consecutive naturals, namely, 8079064323 + ... + 8079064330.

Almost surely, 2^64632514612 is an apocalyptic number.

It is an amenable number.

64632514612 is a deficient number, since it is larger than the sum of its proper divisors (48474385966).

64632514612 is a wasteful number, since it uses less digits than its factorization.

64632514612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158128657 (or 16158128655 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 64632514612 in words is "sixty-four billion, six hundred thirty-two million, five hundred fourteen thousand, six hundred twelve".