64736780000 has 120 divisors (see below), whose sum is σ = 159842833920. Its totient is φ = 25800320000.

The previous prime is 64736779967. The next prime is 64736780033. The reversal of 64736780000 is 8763746.

It is an interprime number because it is at equal distance from previous prime (64736779967) and next prime (64736780033).

It is a self number, because there is not a number n which added to its sum of digits gives 64736780000.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 5614241 + ... + 5625759.

It is an arithmetic number, because the mean of its divisors is an integer number (1332023616).

Almost surely, 2^64736780000 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 64736780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79921416960).

64736780000 is an abundant number, since it is smaller than the sum of its proper divisors (95106053920).

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

64736780000 is a wasteful number, since it uses less digits than its factorization.

64736780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830 (or 11807 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 64736780000 in words is "sixty-four billion, seven hundred thirty-six million, seven hundred eighty thousand".