64039584990 has 16 divisors (see below), whose sum is σ = 153695004048. Its totient is φ = 17077222656.

The previous prime is 64039584989. The next prime is 64039584991. The reversal of 64039584990 is 9948593046.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64039584989) and next prime (64039584991).

It is a self number, because there is not a number n which added to its sum of digits gives 64039584990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64039584991) 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 7 ways as a sum of consecutive naturals, for example, 1067326387 + ... + 1067326446.

It is an arithmetic number, because the mean of its divisors is an integer number (9605937753).

Almost surely, 2^64039584990 is an apocalyptic number.

64039584990 is an abundant number, since it is smaller than the sum of its proper divisors (89655419058).

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

64039584990 is a wasteful number, since it uses less digits than its factorization.

64039584990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134652843.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 64039584990 in words is "sixty-four billion, thirty-nine million, five hundred eighty-four thousand, nine hundred ninety".