64887840627 has 8 divisors (see below), whose sum is σ = 86714200320. Its totient is φ = 43160020680.

The previous prime is 64887840623. The next prime is 64887840653. The reversal of 64887840627 is 72604878846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64887840627 - 2² = 64887840623 is a prime.

It is a super-2 number, since 2×64887840627² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64887840623) 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, 24633399 + ... + 24636032.

It is an arithmetic number, because the mean of its divisors is an integer number (10839275040).

Almost surely, 2^64887840627 is an apocalyptic number.

64887840627 is a deficient number, since it is larger than the sum of its proper divisors (21826359693).

64887840627 is a wasteful number, since it uses less digits than its factorization.

64887840627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49269873.

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 64887840627 in words is "sixty-four billion, eight hundred eighty-seven million, eight hundred forty thousand, six hundred twenty-seven".