48885630821 has 2 divisors, whose sum is σ = 48885630822. Its totient is φ = 48885630820.

The previous prime is 48885630779. The next prime is 48885630877. The reversal of 48885630821 is 12803658884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33046149796 + 15839481025 = 181786^2 + 125855^2 .

It is a cyclic number.

It is not a de Polignac number, because 48885630821 - 2⁶ = 48885630757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48885630881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24442815410 + 24442815411.

It is an arithmetic number, because the mean of its divisors is an integer number (24442815411).

Almost surely, 2^48885630821 is an apocalyptic number.

It is an amenable number.

48885630821 is a deficient number, since it is larger than the sum of its proper divisors (1).

48885630821 is an equidigital number, since it uses as much as digits as its factorization.

48885630821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2949120, while the sum is 53.

The spelling of 48885630821 in words is "forty-eight billion, eight hundred eighty-five million, six hundred thirty thousand, eight hundred twenty-one".