64612005836028 has 24 divisors (see below), whose sum is σ = 172298682229632. Its totient is φ = 18460573095984.

The previous prime is 64612005836017. The next prime is 64612005836051. The reversal of 64612005836028 is 82063850021646.

It is a super-2 number, since 2×64612005836028² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384595272750 + ... + 384595272917.

It is an arithmetic number, because the mean of its divisors is an integer number (7179111759568).

Almost surely, 2^{64612005836028} is an apocalyptic number.

It is an amenable number.

64612005836028 is an abundant number, since it is smaller than the sum of its proper divisors (107686676393604).

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

64612005836028 is a wasteful number, since it uses less digits than its factorization.

64612005836028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769190545681 (or 769190545679 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 64612005836028 in words is "sixty-four trillion, six hundred twelve billion, five million, eight hundred thirty-six thousand, twenty-eight".