64457338148 has 12 divisors (see below), whose sum is σ = 128914676352. Its totient is φ = 27624573480.

The previous prime is 64457338133. The next prime is 64457338151. The reversal of 64457338148 is 84183375446.

64457338148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64457338148 is an admirable number.

It is a super-2 number, since 2×64457338148² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64457338148.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151023868 + ... + 1151023923.

It is an arithmetic number, because the mean of its divisors is an integer number (10742889696).

Almost surely, 2^64457338148 is an apocalyptic number.

It is an amenable number.

64457338148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64457338148 is a wasteful number, since it uses less digits than its factorization.

64457338148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302047802 (or 2302047800 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 53.

The spelling of 64457338148 in words is "sixty-four billion, four hundred fifty-seven million, three hundred thirty-eight thousand, one hundred forty-eight".