64250463828 has 24 divisors (see below), whose sum is σ = 151098207232. Its totient is φ = 21248184384.

The previous prime is 64250463737. The next prime is 64250463829. The reversal of 64250463828 is 82836405246.

It is a super-2 number, since 2×64250463828² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64250463829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21078025 + ... + 21081072.

Almost surely, 2^64250463828 is an apocalyptic number.

It is an amenable number.

64250463828 is an abundant number, since it is smaller than the sum of its proper divisors (86847743404).

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

64250463828 is a wasteful number, since it uses less digits than its factorization.

64250463828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42159231 (or 42159229 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 64250463828 in words is "sixty-four billion, two hundred fifty million, four hundred sixty-three thousand, eight hundred twenty-eight".