5394012665 has 16 divisors (see below), whose sum is σ = 6687677568. Its totient is φ = 4173918336.

The previous prime is 5394012661. The next prime is 5394012697. The reversal of 5394012665 is 5662104935.

It is a cyclic number.

It is not a de Polignac number, because 5394012665 - 2² = 5394012661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5394012661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99644 + ... + 143933.

It is an arithmetic number, because the mean of its divisors is an integer number (417979848).

Almost surely, 2^5394012665 is an apocalyptic number.

It is an amenable number.

5394012665 is a deficient number, since it is larger than the sum of its proper divisors (1293664903).

5394012665 is a wasteful number, since it uses less digits than its factorization.

5394012665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243728.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 5394012665 is about 73443.9423301881. The cubic root of 5394012665 is about 1753.7619929963.

The spelling of 5394012665 in words is "five billion, three hundred ninety-four million, twelve thousand, six hundred sixty-five".