64425465512 has 32 divisors (see below), whose sum is σ = 121852684800. Its totient is φ = 31932312000.

The previous prime is 64425465509. The next prime is 64425465523. The reversal of 64425465512 is 21556452446.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 522962 + ... + 634302.

It is an arithmetic number, because the mean of its divisors is an integer number (3807896400).

Almost surely, 2^64425465512 is an apocalyptic number.

It is an amenable number.

64425465512 is a deficient number, since it is larger than the sum of its proper divisors (57427219288).

64425465512 is a wasteful number, since it uses less digits than its factorization.

64425465512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111977 (or 111973 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 44.

The spelling of 64425465512 in words is "sixty-four billion, four hundred twenty-five million, four hundred sixty-five thousand, five hundred twelve".