247345858689 has 16 divisors (see below), whose sum is σ = 341179499520. Its totient is φ = 159205155200.

The previous prime is 247345858663. The next prime is 247345858741. The reversal of 247345858689 is 986858543742.

It is a cyclic number.

It is not a de Polignac number, because 247345858689 - 2⁵ = 247345858657 is a prime.

It is a super-2 number, since 2×247345858689² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247345858889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4557664 + ... + 4611614.

It is an arithmetic number, because the mean of its divisors is an integer number (21323718720).

Almost surely, 2^247345858689 is an apocalyptic number.

247345858689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

247345858689 is a deficient number, since it is larger than the sum of its proper divisors (93833640831).

247345858689 is a wasteful number, since it uses less digits than its factorization.

247345858689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106680.

The product of its digits is 464486400, while the sum is 69.

The spelling of 247345858689 in words is "two hundred forty-seven billion, three hundred forty-five million, eight hundred fifty-eight thousand, six hundred eighty-nine".