49728044878 has 4 divisors (see below), whose sum is σ = 74592067320. Its totient is φ = 24864022438.

The previous prime is 49728044867. The next prime is 49728044897. The reversal of 49728044878 is 87844082794.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12432011218 + ... + 12432011221.

It is an arithmetic number, because the mean of its divisors is an integer number (18648016830).

Almost surely, 2^49728044878 is an apocalyptic number.

49728044878 is a deficient number, since it is larger than the sum of its proper divisors (24864022442).

49728044878 is a wasteful number, since it uses less digits than its factorization.

49728044878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24864022441.

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 49728044878 in words is "forty-nine billion, seven hundred twenty-eight million, forty-four thousand, eight hundred seventy-eight".