64849104653 has 4 divisors (see below), whose sum is σ = 65948242080. Its totient is φ = 63749967228.

The previous prime is 64849104637. The next prime is 64849104703. The reversal of 64849104653 is 35640194846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64849104653 - 2⁴ = 64849104637 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 (64842104653) 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, 549568625 + ... + 549568742.

It is an arithmetic number, because the mean of its divisors is an integer number (16487060520).

Almost surely, 2^64849104653 is an apocalyptic number.

It is an amenable number.

64849104653 is a deficient number, since it is larger than the sum of its proper divisors (1099137427).

64849104653 is a wasteful number, since it uses less digits than its factorization.

64849104653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099137426.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 64849104653 in words is "sixty-four billion, eight hundred forty-nine million, one hundred four thousand, six hundred fifty-three".