64484537085 has 48 divisors (see below), whose sum is σ = 112351402800. Its totient is φ = 34214095872.

The previous prime is 64484537041. The next prime is 64484537093. The reversal of 64484537085 is 58073548446.

It is a happy number.

64484537085 is a `hidden beast` number, since 6 + 4 + 48 + 453 + 70 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8771071716 + 55713465369 = 93654^2 + 236037^2 .

It is not a de Polignac number, because 64484537085 - 2⁶ = 64484537021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23628001 + ... + 23630729.

It is an arithmetic number, because the mean of its divisors is an integer number (2340654225).

Almost surely, 2^64484537085 is an apocalyptic number.

It is an amenable number.

64484537085 is a deficient number, since it is larger than the sum of its proper divisors (47866865715).

64484537085 is a wasteful number, since it uses less digits than its factorization.

64484537085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5259 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 64484537085 in words is "sixty-four billion, four hundred eighty-four million, five hundred thirty-seven thousand, eighty-five".