64363051552 has 48 divisors (see below), whose sum is σ = 135148056120. Its totient is φ = 30067376128.

The previous prime is 64363051541. The next prime is 64363051553. The reversal of 64363051552 is 25515036346.

64363051552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46758007696 + 17605043856 = 216236^2 + 132684^2 .

It is not an unprimeable number, because it can be changed into a prime (64363051553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357277 + ... + 506332.

Almost surely, 2^64363051552 is an apocalyptic number.

It is an amenable number.

64363051552 is an abundant number, since it is smaller than the sum of its proper divisors (70785004568).

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

64363051552 is a wasteful number, since it uses less digits than its factorization.

64363051552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863773 (or 863765 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 64363051552 its reverse (25515036346), we get a palindrome (89878087898).

The spelling of 64363051552 in words is "sixty-four billion, three hundred sixty-three million, fifty-one thousand, five hundred fifty-two".