65873839680 has 896 divisors, whose sum is σ = 263932416000. Its totient is φ = 15519651840.

The previous prime is 65873839657. The next prime is 65873839721. The reversal of 65873839680 is 8693837856.

65873839680 is a `hidden beast` number, since 65 + 87 + 38 + 396 + 80 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 331024221 + ... + 331024419.

Almost surely, 2^65873839680 is an apocalyptic number.

65873839680 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 65873839680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131966208000).

65873839680 is an abundant number, since it is smaller than the sum of its proper divisors (198058576320).

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

65873839680 is a wasteful number, since it uses less digits than its factorization.

65873839680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 65873839680 in words is "sixty-five billion, eight hundred seventy-three million, eight hundred thirty-nine thousand, six hundred eighty".