64541814546 has 24 divisors (see below), whose sum is σ = 141885312912. Its totient is φ = 19558125400.

The previous prime is 64541814541. The next prime is 64541814553.

64541814546 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64541814546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64541814495 and 64541814504.

It is not an unprimeable number, because it can be changed into a prime (64541814541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44449560 + ... + 44451011.

It is an arithmetic number, because the mean of its divisors is an integer number (5911888038).

Almost surely, 2^64541814546 is an apocalyptic number.

64541814546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64541814546 is an abundant number, since it is smaller than the sum of its proper divisors (77343498366).

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

64541814546 is a wasteful number, since it uses less digits than its factorization.

64541814546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88900598 (or 88900587 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The spelling of 64541814546 in words is "sixty-four billion, five hundred forty-one million, eight hundred fourteen thousand, five hundred forty-six".