64836338700 has 144 divisors (see below), whose sum is σ = 214656538880. Its totient is φ = 14801460480.

The previous prime is 64836338659. The next prime is 64836338713. The reversal of 64836338700 is 783363846.

It is a super-2 number, since 2×64836338700² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64836338700.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1722279 + ... + 1759521.

Almost surely, 2^64836338700 is an apocalyptic number.

64836338700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64836338700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107328269440).

64836338700 is an abundant number, since it is smaller than the sum of its proper divisors (149820200180).

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

64836338700 is a wasteful number, since it uses less digits than its factorization.

64836338700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38096 (or 38089 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 64836338700 in words is "sixty-four billion, eight hundred thirty-six million, three hundred thirty-eight thousand, seven hundred".