64912162968 has 160 divisors (see below), whose sum is σ = 185210150400. Its totient is φ = 21234508992.

The previous prime is 64912162961. The next prime is 64912163047. The reversal of 64912162968 is 86926121946.

64912162968 is a `hidden beast` number, since 6 + 4 + 9 + 1 + 2 + 1 + 629 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64912162961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31463905 + ... + 31465967.

It is an arithmetic number, because the mean of its divisors is an integer number (1157563440).

Almost surely, 2^64912162968 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 64912162968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92605075200).

64912162968 is an abundant number, since it is smaller than the sum of its proper divisors (120297987432).

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

64912162968 is a wasteful number, since it uses less digits than its factorization.

64912162968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963 (or 2950 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 64912162968 in words is "sixty-four billion, nine hundred twelve million, one hundred sixty-two thousand, nine hundred sixty-eight".