64212543630 has 24 divisors (see below), whose sum is σ = 166952613672. Its totient is φ = 17123344944.

The previous prime is 64212543607. The next prime is 64212543673. The reversal of 64212543630 is 3634521246.

64212543630 is a `hidden beast` number, since 6 + 4 + 2 + 12 + 5 + 4 + 3 + 630 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356736264 + ... + 356736443.

It is an arithmetic number, because the mean of its divisors is an integer number (6956358903).

Almost surely, 2^64212543630 is an apocalyptic number.

64212543630 is an abundant number, since it is smaller than the sum of its proper divisors (102740070042).

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

64212543630 is a wasteful number, since it uses less digits than its factorization.

64212543630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713472720 (or 713472717 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 64212543630 in words is "sixty-four billion, two hundred twelve million, five hundred forty-three thousand, six hundred thirty".