64253253087 has 24 divisors (see below), whose sum is σ = 93881498256. Its totient is φ = 42342160896.

The previous prime is 64253253017. The next prime is 64253253089. The reversal of 64253253087 is 78035235246.

64253253087 is a `hidden beast` number, since 6 + 4 + 2 + 5 + 32 + 530 + 87 = 666.

It is not a de Polignac number, because 64253253087 - 2¹¹ = 64253251039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64253253089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677473 + ... + 766469.

It is an arithmetic number, because the mean of its divisors is an integer number (3911729094).

Almost surely, 2^64253253087 is an apocalyptic number.

64253253087 is a deficient number, since it is larger than the sum of its proper divisors (29628245169).

64253253087 is a wasteful number, since it uses less digits than its factorization.

64253253087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89927 (or 89924 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 64253253087 in words is "sixty-four billion, two hundred fifty-three million, two hundred fifty-three thousand, eighty-seven".