64385827690142 has 32 divisors (see below), whose sum is σ = 111980183132160. Its totient is φ = 27195187057920.

The previous prime is 64385827690117. The next prime is 64385827690169. The reversal of 64385827690142 is 24109672858346.

It is a super-2 number, since 2×64385827690142² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 98864234 + ... + 99513357.

It is an arithmetic number, because the mean of its divisors is an integer number (3499380722880).

It is a 1-persistent number, because it is pandigital, but 2⋅64385827690142 = 128771655380284 is not.

Almost surely, 2^{64385827690142} is an apocalyptic number.

64385827690142 is a deficient number, since it is larger than the sum of its proper divisors (47594355442018).

64385827690142 is a wasteful number, since it uses less digits than its factorization.

64385827690142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198377936.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 64385827690142 in words is "sixty-four trillion, three hundred eighty-five billion, eight hundred twenty-seven million, six hundred ninety thousand, one hundred forty-two".