64250706672 has 30 divisors (see below), whose sum is σ = 179812741992. Its totient is φ = 21416902176.

The previous prime is 64250706649. The next prime is 64250706677. The reversal of 64250706672 is 27660705246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64250706677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 223092588 + ... + 223092875.

Almost surely, 2^64250706672 is an apocalyptic number.

It is an amenable number.

64250706672 is an abundant number, since it is smaller than the sum of its proper divisors (115562035320).

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

64250706672 is a wasteful number, since it uses less digits than its factorization.

64250706672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446185477 (or 446185468 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 64250706672 in words is "sixty-four billion, two hundred fifty million, seven hundred six thousand, six hundred seventy-two".