48277218139821 has 12 divisors (see below), whose sum is σ = 76073192220480. Its totient is φ = 29258920084680.

The previous prime is 48277218139819. The next prime is 48277218139939. The reversal of 48277218139821 is 12893181277284.

48277218139821 is a `hidden beast` number, since 4 + 8 + 2 + 7 + 7 + 218 + 1 + 398 + 21 = 666.

It is not a de Polignac number, because 48277218139821 - 2¹ = 48277218139819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48277218139721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243824333941 + ... + 243824334138.

It is an arithmetic number, because the mean of its divisors is an integer number (6339432685040).

Almost surely, 2^{48277218139821} is an apocalyptic number.

It is an amenable number.

48277218139821 is a deficient number, since it is larger than the sum of its proper divisors (27795974080659).

48277218139821 is a wasteful number, since it uses less digits than its factorization.

48277218139821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487648668096 (or 487648668093 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The spelling of 48277218139821 in words is "forty-eight trillion, two hundred seventy-seven billion, two hundred eighteen million, one hundred thirty-nine thousand, eight hundred twenty-one".