49321978543 has 8 divisors (see below), whose sum is σ = 49707201456. Its totient is φ = 48936888000.

The previous prime is 49321978507. The next prime is 49321978561. The reversal of 49321978543 is 34587912394.

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 49321978543 - 2⁹ = 49321978031 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 (49321972543) 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 7 ways as a sum of consecutive naturals, for example, 795555 + ... + 855307.

It is an arithmetic number, because the mean of its divisors is an integer number (6213400182).

Almost surely, 2^49321978543 is an apocalyptic number.

49321978543 is a deficient number, since it is larger than the sum of its proper divisors (385222913).

49321978543 is a wasteful number, since it uses less digits than its factorization.

49321978543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66185.

The product of its digits is 6531840, while the sum is 55.

The spelling of 49321978543 in words is "forty-nine billion, three hundred twenty-one million, nine hundred seventy-eight thousand, five hundred forty-three".