7426432665 has 24 divisors (see below), whose sum is σ = 13316364360. Its totient is φ = 3824185344.

The previous prime is 7426432661. The next prime is 7426432667. The reversal of 7426432665 is 5662346247.

7426432665 is a `hidden beast` number, since 7 + 4 + 264 + 326 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 535274496 + 6891158169 = 23136^2 + 83013^2 .

It is not a de Polignac number, because 7426432665 - 2² = 7426432661 is a prime.

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 7426432665.

It is not an unprimeable number, because it can be changed into a prime (7426432661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2844072 + ... + 2846681.

It is an arithmetic number, because the mean of its divisors is an integer number (554848515).

Almost surely, 2^7426432665 is an apocalyptic number.

It is an amenable number.

7426432665 is a deficient number, since it is larger than the sum of its proper divisors (5889931695).

7426432665 is a wasteful number, since it uses less digits than its factorization.

7426432665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690793 (or 5690790 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 7426432665 is about 86176.7524625986. The cubic root of 7426432665 is about 1951.0126377528.

It can be divided in two parts, 74264 and 32665, that added together give a square (106929 = 327²).

The spelling of 7426432665 in words is "seven billion, four hundred twenty-six million, four hundred thirty-two thousand, six hundred sixty-five".