65476938384 has 400 divisors, whose sum is σ = 232335379584. Its totient is φ = 17517772800.

The previous prime is 65476938349. The next prime is 65476938389. The reversal of 65476938384 is 48383967456.

65476938384 is a `hidden beast` number, since 6 + 5 + 476 + 9 + 3 + 83 + 84 = 666.

It is not an unprimeable number, because it can be changed into a prime (65476938389) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4254864 + ... + 4270224.

Almost surely, 2^65476938384 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 65476938384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116167689792).

65476938384 is an abundant number, since it is smaller than the sum of its proper divisors (166858441200).

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

65476938384 is a wasteful number, since it uses less digits than its factorization.

65476938384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15428 (or 15413 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 65476938384 in words is "sixty-five billion, four hundred seventy-six million, nine hundred thirty-eight thousand, three hundred eighty-four".