21889048907486 has 32 divisors (see below), whose sum is σ = 33946575284160. Its totient is φ = 10578499948800.

The previous prime is 21889048907461. The next prime is 21889048907591. The reversal of 21889048907486 is 68470984098812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87172076 + ... + 87422816.

It is an arithmetic number, because the mean of its divisors is an integer number (1060830477630).

Almost surely, 2^{21889048907486} is an apocalyptic number.

21889048907486 is a deficient number, since it is larger than the sum of its proper divisors (12057526376674).

21889048907486 is a wasteful number, since it uses less digits than its factorization.

21889048907486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260660.

The product of its (nonzero) digits is 445906944, while the sum is 74.

The spelling of 21889048907486 in words is "twenty-one trillion, eight hundred eighty-nine billion, forty-eight million, nine hundred seven thousand, four hundred eighty-six".