48873390921221 has 4 divisors (see below), whose sum is σ = 48882275382444. Its totient is φ = 48864506460000.

The previous prime is 48873390921209. The next prime is 48873390921301. The reversal of 48873390921221 is 12212909337884.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45140110012321 + 3733280908900 = 6718639^2 + 1932170^2 .

It is a cyclic number.

It is not a de Polignac number, because 48873390921221 - 2¹⁰ = 48873390920197 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 (48873390921821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4442222360 + ... + 4442233361.

It is an arithmetic number, because the mean of its divisors is an integer number (12220568845611).

Almost surely, 2^{48873390921221} is an apocalyptic number.

It is an amenable number.

48873390921221 is a deficient number, since it is larger than the sum of its proper divisors (8884461223).

48873390921221 is an equidigital number, since it uses as much as digits as its factorization.

48873390921221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884461222.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 48873390921221 in words is "forty-eight trillion, eight hundred seventy-three billion, three hundred ninety million, nine hundred twenty-one thousand, two hundred twenty-one".