49142889855 has 24 divisors (see below), whose sum is σ = 88884533088. Its totient is φ = 25069995456.

The previous prime is 49142889833. The next prime is 49142889869. The reversal of 49142889855 is 55898824194.

49142889855 is a `hidden beast` number, since 491 + 4 + 2 + 8 + 8 + 98 + 55 = 666.

It is not a de Polignac number, because 49142889855 - 2⁹ = 49142889343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49142889792 and 49142889801.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 23739492 + ... + 23741561.

It is an arithmetic number, because the mean of its divisors is an integer number (3703522212).

Almost surely, 2^49142889855 is an apocalyptic number.

49142889855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49142889855 is a deficient number, since it is larger than the sum of its proper divisors (39741643233).

49142889855 is a wasteful number, since it uses less digits than its factorization.

49142889855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47481087 (or 47481084 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 63.

The spelling of 49142889855 in words is "forty-nine billion, one hundred forty-two million, eight hundred eighty-nine thousand, eight hundred fifty-five".