48851923821 has 4 divisors (see below), whose sum is σ = 65135898432. Its totient is φ = 32567949212.

The previous prime is 48851923811. The next prime is 48851923849. The reversal of 48851923821 is 12832915884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48851923821 - 2¹⁰ = 48851922797 is a prime.

It is a super-2 number, since 2×48851923821² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48851923811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8141987301 + ... + 8141987306.

It is an arithmetic number, because the mean of its divisors is an integer number (16283974608).

Almost surely, 2^48851923821 is an apocalyptic number.

It is an amenable number.

48851923821 is a deficient number, since it is larger than the sum of its proper divisors (16283974611).

48851923821 is a wasteful number, since it uses less digits than its factorization.

48851923821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16283974610.

The product of its digits is 1105920, while the sum is 51.

The spelling of 48851923821 in words is "forty-eight billion, eight hundred fifty-one million, nine hundred twenty-three thousand, eight hundred twenty-one".