64842650 has 24 divisors (see below), whose sum is σ = 121090464. Its totient is φ = 25833200.

The previous prime is 64842619. The next prime is 64842697. The reversal of 64842650 is 5624846.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64842650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10685 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (5045436).

Almost surely, 2^64842650 is an apocalyptic number.

64842650 is the 6575-th pentagonal number.

64842650 is a deficient number, since it is larger than the sum of its proper divisors (56247814).

64842650 is a wasteful number, since it uses less digits than its factorization.

64842650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206 (or 5201 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 64842650 is about 8052.4934026673. The cubic root of 64842650 is about 401.7478720667.

The spelling of 64842650 in words is "sixty-four million, eight hundred forty-two thousand, six hundred fifty".