49818323565 has 16 divisors (see below), whose sum is σ = 88565908800. Its totient is φ = 26569772496.

The previous prime is 49818323561. The next prime is 49818323579. The reversal of 49818323565 is 56532381894.

49818323565 is a `hidden beast` number, since 49 + 8 + 1 + 8 + 32 + 3 + 565 = 666.

It is not a de Polignac number, because 49818323565 - 2² = 49818323561 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49818323561) 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, 184512175 + ... + 184512444.

It is an arithmetic number, because the mean of its divisors is an integer number (5535369300).

Almost surely, 2^49818323565 is an apocalyptic number.

49818323565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49818323565 is a deficient number, since it is larger than the sum of its proper divisors (38747585235).

49818323565 is a wasteful number, since it uses less digits than its factorization.

49818323565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369024633 (or 369024627 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 49818323565 in words is "forty-nine billion, eight hundred eighteen million, three hundred twenty-three thousand, five hundred sixty-five".