7653105945 has 24 divisors (see below), whose sum is σ = 13722813000. Its totient is φ = 3940909056.

The previous prime is 7653105907. The next prime is 7653105947. The reversal of 7653105945 is 5495013567.

7653105945 is a `hidden beast` number, since 7 + 6 + 53 + 1 + 0 + 594 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1762236441 + 5890869504 = 41979^2 + 76752^2 .

It is not a de Polignac number, because 7653105945 - 2¹² = 7653101849 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7653105945.

It is not an unprimeable number, because it can be changed into a prime (7653105947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2930920 + ... + 2933529.

It is an arithmetic number, because the mean of its divisors is an integer number (571783875).

Almost surely, 2^7653105945 is an apocalyptic number.

It is an amenable number.

7653105945 is a deficient number, since it is larger than the sum of its proper divisors (6069707055).

7653105945 is a wasteful number, since it uses less digits than its factorization.

7653105945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864489 (or 5864486 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 7653105945 is about 87482.0321266030. The cubic root of 7653105945 is about 1970.6639644834.

The spelling of 7653105945 in words is "seven billion, six hundred fifty-three million, one hundred five thousand, nine hundred forty-five".