7864650653 has 8 divisors (see below), whose sum is σ = 8332606080. Its totient is φ = 7397287360.

The previous prime is 7864650649. The next prime is 7864650691. The reversal of 7864650653 is 3560564687.

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

It is a cyclic number.

It is not a de Polignac number, because 7864650653 - 2² = 7864650649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7864550653) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 120533 + ... + 173946.

It is an arithmetic number, because the mean of its divisors is an integer number (1041575760).

Almost surely, 2^7864650653 is an apocalyptic number.

It is an amenable number.

7864650653 is a deficient number, since it is larger than the sum of its proper divisors (467955427).

7864650653 is a wasteful number, since it uses less digits than its factorization.

7864650653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296067.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 7864650653 is about 88682.8656111202. The cubic root of 7864650653 is about 1988.6566738558.

The spelling of 7864650653 in words is "seven billion, eight hundred sixty-four million, six hundred fifty thousand, six hundred fifty-three".