65487478456 has 32 divisors (see below), whose sum is σ = 128373789600. Its totient is φ = 31259937280.

The previous prime is 65487478447. The next prime is 65487478501.

65487478456 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245701 + ... + 437428.

It is an arithmetic number, because the mean of its divisors is an integer number (4011680925).

Almost surely, 2^65487478456 is an apocalyptic number.

It is an amenable number.

65487478456 is a deficient number, since it is larger than the sum of its proper divisors (62886311144).

65487478456 is a wasteful number, since it uses less digits than its factorization.

65487478456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683679 (or 683675 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 64.

The spelling of 65487478456 in words is "sixty-five billion, four hundred eighty-seven million, four hundred seventy-eight thousand, four hundred fifty-six".