608661881257249 has 32 divisors (see below), whose sum is σ = 652198180368384. Its totient is φ = 566787377069760.

The previous prime is 608661881257169. The next prime is 608661881257259. The reversal of 608661881257249 is 942752188166806.

It is a cyclic number.

It is not a de Polignac number, because 608661881257249 - 2¹¹ = 608661881255201 is a prime.

It is a super-2 number, since 2×608661881257249² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608661881257259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53150787 + ... + 63579319.

It is an arithmetic number, because the mean of its divisors is an integer number (20381193136512).

Almost surely, 2^{608661881257249} is an apocalyptic number.

It is an amenable number.

608661881257249 is a deficient number, since it is larger than the sum of its proper divisors (43536299111135).

608661881257249 is a wasteful number, since it uses less digits than its factorization.

608661881257249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429077.

The product of its (nonzero) digits is 557383680, while the sum is 73.

The spelling of 608661881257249 in words is "six hundred eight trillion, six hundred sixty-one billion, eight hundred eighty-one million, two hundred fifty-seven thousand, two hundred forty-nine".