64428653583 has 128 divisors (see below), whose sum is σ = 119704780800. Its totient is φ = 33410797056.

The previous prime is 64428653581. The next prime is 64428653593. The reversal of 64428653583 is 38535682446.

64428653583 = 2³ + 3³ + ... + 712³.

64428653583 is a `hidden beast` number, since 6 + 4 + 4 + 2 + 8 + 6 + 53 + 583 = 666.

64428653583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 253828²-1.

It is not a de Polignac number, because 64428653583 - 2¹ = 64428653581 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64428653581) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10911610 + ... + 10917512.

It is an arithmetic number, because the mean of its divisors is an integer number (935193600).

Almost surely, 2^64428653583 is an apocalyptic number.

64428653583 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

64428653583 is a deficient number, since it is larger than the sum of its proper divisors (55276127217).

64428653583 is a wasteful number, since it uses less digits than its factorization.

64428653583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6052 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 64428653583 in words is "sixty-four billion, four hundred twenty-eight million, six hundred fifty-three thousand, five hundred eighty-three".