21896005048 has 8 divisors (see below), whose sum is σ = 41055009480. Its totient is φ = 10948002520.

The previous prime is 21896005031. The next prime is 21896005057. The reversal of 21896005048 is 84050069812.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 21896004995 and 21896005013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1368500308 + ... + 1368500323.

It is an arithmetic number, because the mean of its divisors is an integer number (5131876185).

Almost surely, 2^21896005048 is an apocalyptic number.

It is an amenable number.

21896005048 is a deficient number, since it is larger than the sum of its proper divisors (19159004432).

21896005048 is a wasteful number, since it uses less digits than its factorization.

21896005048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737000637 (or 2737000633 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 21896005048 in words is "twenty-one billion, eight hundred ninety-six million, five thousand, forty-eight".