7487800065 has 48 divisors (see below), whose sum is σ = 13404268800. Its totient is φ = 3864512256.

The previous prime is 7487800057. The next prime is 7487800069. The reversal of 7487800065 is 5600087847.

It is not a de Polignac number, because 7487800065 - 2³ = 7487800057 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (7487800069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168346 + ... + 208124.

It is an arithmetic number, because the mean of its divisors is an integer number (279255600).

Almost surely, 2^7487800065 is an apocalyptic number.

It is an amenable number.

7487800065 is a deficient number, since it is larger than the sum of its proper divisors (5916468735).

7487800065 is a wasteful number, since it uses less digits than its factorization.

7487800065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39926 (or 39923 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 7487800065 is about 86532.0753535936. The cubic root of 7487800065 is about 1956.3718861135.

The spelling of 7487800065 in words is "seven billion, four hundred eighty-seven million, eight hundred thousand, sixty-five".