64726462746 has 128 divisors (see below), whose sum is σ = 169636377600. Its totient is φ = 18079433280.

The previous prime is 64726462699. The next prime is 64726462751.

64726462746 is a `hidden beast` number, since 6 + 4 + 7 + 2 + 6 + 4 + 627 + 4 + 6 = 666.

64726462746 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 64726462692 and 64726462701.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340081 + ... + 495083.

It is an arithmetic number, because the mean of its divisors is an integer number (1325284200).

Almost surely, 2^64726462746 is an apocalyptic number.

64726462746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64726462746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84818188800).

64726462746 is an abundant number, since it is smaller than the sum of its proper divisors (104909914854).

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

64726462746 is a wasteful number, since it uses less digits than its factorization.

64726462746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155081 (or 155075 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 64726462746 in words is "sixty-four billion, seven hundred twenty-six million, four hundred sixty-two thousand, seven hundred forty-six".