64263120612 has 12 divisors (see below), whose sum is σ = 149947281456. Its totient is φ = 21421040200.

The previous prime is 64263120587. The next prime is 64263120631. The reversal of 64263120612 is 21602136246.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677630014 + ... + 2677630037.

It is an arithmetic number, because the mean of its divisors is an integer number (12495606788).

Almost surely, 2^64263120612 is an apocalyptic number.

It is an amenable number.

64263120612 is an abundant number, since it is smaller than the sum of its proper divisors (85684160844).

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

64263120612 is a wasteful number, since it uses less digits than its factorization.

64263120612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355260058 (or 5355260056 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 64263120612 its reverse (21602136246), we get a palindrome (85865256858).

The spelling of 64263120612 in words is "sixty-four billion, two hundred sixty-three million, one hundred twenty thousand, six hundred twelve".