64250682887 has 4 divisors (see below), whose sum is σ = 64257330720. Its totient is φ = 64244035056.

The previous prime is 64250682833. The next prime is 64250682889. The reversal of 64250682887 is 78828605246.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64250682887 - 2¹⁴ = 64250666503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64250682889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3309398 + ... + 3328755.

It is an arithmetic number, because the mean of its divisors is an integer number (16064332680).

Almost surely, 2^64250682887 is an apocalyptic number.

64250682887 is a deficient number, since it is larger than the sum of its proper divisors (6647833).

64250682887 is an equidigital number, since it uses as much as digits as its factorization.

64250682887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647832.

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 64250682887 in words is "sixty-four billion, two hundred fifty million, six hundred eighty-two thousand, eight hundred eighty-seven".