49372784399 has 4 divisors (see below), whose sum is σ = 49374147336. Its totient is φ = 49371421464.

The previous prime is 49372784389. The next prime is 49372784401. The reversal of 49372784399 is 99348727394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49372784399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49372784389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625604 + ... + 700089.

It is an arithmetic number, because the mean of its divisors is an integer number (12343536834).

Almost surely, 2^49372784399 is an apocalyptic number.

49372784399 is a deficient number, since it is larger than the sum of its proper divisors (1362937).

49372784399 is a wasteful number, since it uses less digits than its factorization.

49372784399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362936.

The product of its digits is 82301184, while the sum is 65.

The spelling of 49372784399 in words is "forty-nine billion, three hundred seventy-two million, seven hundred eighty-four thousand, three hundred ninety-nine".