7447400065 has 32 divisors (see below), whose sum is σ = 10330145280. Its totient is φ = 5048676864.

The previous prime is 7447400063. The next prime is 7447400101. The reversal of 7447400065 is 5600047447.

It is not a de Polignac number, because 7447400065 - 2¹ = 7447400063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7447399997 and 7447400033.

It is not an unprimeable number, because it can be changed into a prime (7447400063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2727621 + ... + 2730349.

It is an arithmetic number, because the mean of its divisors is an integer number (322817040).

Almost surely, 2^7447400065 is an apocalyptic number.

It is an amenable number.

7447400065 is a deficient number, since it is larger than the sum of its proper divisors (2882745215).

7447400065 is a wasteful number, since it uses less digits than its factorization.

7447400065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 7447400065 is about 86298.3201748447. The cubic root of 7447400065 is about 1952.8470413240.

The spelling of 7447400065 in words is "seven billion, four hundred forty-seven million, four hundred thousand, sixty-five".