21763043454 has 16 divisors (see below), whose sum is σ = 43529211648. Its totient is φ = 7253827032.

The previous prime is 21763043443. The next prime is 21763043473. The reversal of 21763043454 is 45434036712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34212 + ... + 211415.

It is an arithmetic number, because the mean of its divisors is an integer number (2720575728).

Almost surely, 2^21763043454 is an apocalyptic number.

21763043454 is an abundant number, since it is smaller than the sum of its proper divisors (21766168194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21763043454 is a wasteful number, since it uses less digits than its factorization.

21763043454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260399.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 21763043454 in words is "twenty-one billion, seven hundred sixty-three million, forty-three thousand, four hundred fifty-four".