64410939936 has 192 divisors, whose sum is σ = 221629685760. Its totient is φ = 17809424640.

The previous prime is 64410939919. The next prime is 64410939937. The reversal of 64410939936 is 63993901446.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (64410939937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15715 + ... + 359261.

It is an arithmetic number, because the mean of its divisors is an integer number (1154321280).

Almost surely, 2^64410939936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64410939936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110814842880).

64410939936 is an abundant number, since it is smaller than the sum of its proper divisors (157218745824).

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

64410939936 is a wasteful number, since it uses less digits than its factorization.

64410939936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343604 (or 343590 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 64410939936 in words is "sixty-four billion, four hundred ten million, nine hundred thirty-nine thousand, nine hundred thirty-six".