65412978759 has 24 divisors (see below), whose sum is σ = 101145687552. Its totient is φ = 42201916920.

The previous prime is 65412978737. The next prime is 65412978767. The reversal of 65412978759 is 95787921456.

65412978759 is a `hidden beast` number, since 6 + 5 + 412 + 97 + 87 + 59 = 666.

It is not a de Polignac number, because 65412978759 - 2⁸ = 65412978503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65412978696 and 65412978705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65412978559) 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, 4334229 + ... + 4349294.

It is an arithmetic number, because the mean of its divisors is an integer number (4214403648).

Almost surely, 2^65412978759 is an apocalyptic number.

65412978759 is a deficient number, since it is larger than the sum of its proper divisors (35732708793).

65412978759 is an equidigital number, since it uses as much as digits as its factorization.

65412978759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8683569 (or 8683557 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 65412978759 in words is "sixty-five billion, four hundred twelve million, nine hundred seventy-eight thousand, seven hundred fifty-nine".