64452011512 has 32 divisors (see below), whose sum is σ = 138124562400. Its totient is φ = 27619668864.

The previous prime is 64452011483. The next prime is 64452011531. The reversal of 64452011512 is 21511025446.

It is a happy number.

64452011512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64452011512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612814 + ... + 710242.

It is an arithmetic number, because the mean of its divisors is an integer number (4316392575).

Almost surely, 2^64452011512 is an apocalyptic number.

It is an amenable number.

64452011512 is an abundant number, since it is smaller than the sum of its proper divisors (73672550888).

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

64452011512 is a wasteful number, since it uses less digits than its factorization.

64452011512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109255 (or 109251 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 64452011512 its reverse (21511025446), we get a palindrome (85963036958).

The spelling of 64452011512 in words is "sixty-four billion, four hundred fifty-two million, eleven thousand, five hundred twelve".