8530243745 has 16 divisors (see below), whose sum is σ = 10281228480. Its totient is φ = 6794299584.

The previous prime is 8530243741. The next prime is 8530243769. The reversal of 8530243745 is 5473420358.

It is a cyclic number.

It is not a de Polignac number, because 8530243745 - 2² = 8530243741 is a prime.

It is a super-2 number, since 2×8530243745² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8530243741) 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, 1278839 + ... + 1285491.

It is an arithmetic number, because the mean of its divisors is an integer number (642576780).

Almost surely, 2^8530243745 is an apocalyptic number.

It is an amenable number.

8530243745 is a deficient number, since it is larger than the sum of its proper divisors (1750984735).

8530243745 is a wasteful number, since it uses less digits than its factorization.

8530243745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744.

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 8530243745 is about 92359.3186689898. The cubic root of 8530243745 is about 2043.2451669582.

The spelling of 8530243745 in words is "eight billion, five hundred thirty million, two hundred forty-three thousand, seven hundred forty-five".