21250641460246 has 24 divisors (see below), whose sum is σ = 35300535136776. Its totient is φ = 9515212549920.

The previous prime is 21250641460193. The next prime is 21250641460267. The reversal of 21250641460246 is 64206414605212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107490711 + ... + 107688226.

It is an arithmetic number, because the mean of its divisors is an integer number (1470855630699).

Almost surely, 2^{21250641460246} is an apocalyptic number.

21250641460246 is a deficient number, since it is larger than the sum of its proper divisors (14049893676530).

21250641460246 is a wasteful number, since it uses less digits than its factorization.

21250641460246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215179084 (or 215179017 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 21250641460246 in words is "twenty-one trillion, two hundred fifty billion, six hundred forty-one million, four hundred sixty thousand, two hundred forty-six".