64245514650 has 24 divisors (see below), whose sum is σ = 159328876704. Its totient is φ = 17132137200.

The previous prime is 64245514649. The next prime is 64245514651. The reversal of 64245514650 is 5641554246.

It is an interprime number because it is at equal distance from previous prime (64245514649) and next prime (64245514651).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64245514651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214151566 + ... + 214151865.

It is an arithmetic number, because the mean of its divisors is an integer number (6638703196).

Almost surely, 2^64245514650 is an apocalyptic number.

64245514650 is an abundant number, since it is smaller than the sum of its proper divisors (95083362054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64245514650 is a wasteful number, since it uses less digits than its factorization.

64245514650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428303446 (or 428303441 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 64245514650 in words is "sixty-four billion, two hundred forty-five million, five hundred fourteen thousand, six hundred fifty".