64782416226 has 32 divisors (see below), whose sum is σ = 148782585600. Its totient is φ = 18597822480.

The previous prime is 64782416219. The next prime is 64782416243. The reversal of 64782416226 is 62261428746.

64782416226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64782416226² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25829056 + ... + 25831563.

It is an arithmetic number, because the mean of its divisors is an integer number (4649455800).

Almost surely, 2^64782416226 is an apocalyptic number.

64782416226 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64782416226 is an abundant number, since it is smaller than the sum of its proper divisors (84000169374).

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

64782416226 is a wasteful number, since it uses less digits than its factorization.

64782416226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51660654.

The product of its digits is 1548288, while the sum is 48.

The spelling of 64782416226 in words is "sixty-four billion, seven hundred eighty-two million, four hundred sixteen thousand, two hundred twenty-six".