45244678865 has 8 divisors (see below), whose sum is σ = 54327621480. Its totient is φ = 36173071872.

The previous prime is 45244678861. The next prime is 45244678903. The reversal of 45244678865 is 56887644254.

It can be written as a sum of positive squares in 4 ways, for example, as 6927399361 + 38317279504 = 83231^2 + 195748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45244678865 - 2² = 45244678861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45244678861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825120 + ... + 2841089.

It is an arithmetic number, because the mean of its divisors is an integer number (6790952685).

Almost surely, 2^45244678865 is an apocalyptic number.

It is an amenable number.

45244678865 is a deficient number, since it is larger than the sum of its proper divisors (9082942615).

45244678865 is a wasteful number, since it uses less digits than its factorization.

45244678865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667811.

The product of its digits is 51609600, while the sum is 59.

The spelling of 45244678865 in words is "forty-five billion, two hundred forty-four million, six hundred seventy-eight thousand, eight hundred sixty-five".