64433634212 has 12 divisors (see below), whose sum is σ = 112786723056. Its totient is φ = 32208856200.

The previous prime is 64433634103. The next prime is 64433634229. The reversal of 64433634212 is 21243633446.

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, 1971998 + ... + 2004405.

It is an arithmetic number, because the mean of its divisors is an integer number (9398893588).

Almost surely, 2^64433634212 is an apocalyptic number.

It is an amenable number.

64433634212 is a deficient number, since it is larger than the sum of its proper divisors (48353088844).

64433634212 is a wasteful number, since it uses less digits than its factorization.

64433634212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980458 (or 3980456 counting only the distinct ones).

The product of its digits is 248832, while the sum is 38.

The spelling of 64433634212 in words is "sixty-four billion, four hundred thirty-three million, six hundred thirty-four thousand, two hundred twelve".