65740740747 has 24 divisors (see below), whose sum is σ = 96372276672. Its totient is φ = 39832549680.

The previous prime is 65740740743. The next prime is 65740740761. The reversal of 65740740747 is 74704704756.

65740740747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65740740747 - 2² = 65740740743 is a prime.

It is a super-2 number, since 2×65740740747² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65740740747.

It is not an unprimeable number, because it can be changed into a prime (65740740743) 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, 1518868 + ... + 1561550.

It is an arithmetic number, because the mean of its divisors is an integer number (4015511528).

Almost surely, 2^65740740747 is an apocalyptic number.

65740740747 is a deficient number, since it is larger than the sum of its proper divisors (30631535925).

65740740747 is a wasteful number, since it uses less digits than its factorization.

65740740747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46951 (or 46940 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 51.

The spelling of 65740740747 in words is "sixty-five billion, seven hundred forty million, seven hundred forty thousand, seven hundred forty-seven".