8345127645 has 24 divisors (see below), whose sum is σ = 14470822392. Its totient is φ = 4448908800.

The previous prime is 8345127613. The next prime is 8345127653. The reversal of 8345127645 is 5467215438.

It can be written as a sum of positive squares in 4 ways, for example, as 706018041 + 7639109604 = 26571^2 + 87402^2 .

It is not a de Polignac number, because 8345127645 - 2⁵ = 8345127613 is a prime.

It is a super-2 number, since 2×8345127645² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8345127645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76665 + ... + 150225.

It is an arithmetic number, because the mean of its divisors is an integer number (602950933).

Almost surely, 2^8345127645 is an apocalyptic number.

It is an amenable number.

8345127645 is a deficient number, since it is larger than the sum of its proper divisors (6125694747).

8345127645 is a wasteful number, since it uses less digits than its factorization.

8345127645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76093 (or 76090 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 8345127645 is about 91351.6701817761. The cubic root of 8345127645 is about 2028.3566861213.

The spelling of 8345127645 in words is "eight billion, three hundred forty-five million, one hundred twenty-seven thousand, six hundred forty-five".