21448215196 has 12 divisors (see below), whose sum is σ = 37641927400. Its totient is φ = 10693378800.

The previous prime is 21448215193. The next prime is 21448215203. The reversal of 21448215196 is 69151284412.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21448215193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7680630 + ... + 7683421.

Almost surely, 2^21448215196 is an apocalyptic number.

It is an amenable number.

21448215196 is a deficient number, since it is larger than the sum of its proper divisors (16193712204).

21448215196 is a wasteful number, since it uses less digits than its factorization.

21448215196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15364404 (or 15364402 counting only the distinct ones).

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

The spelling of 21448215196 in words is "twenty-one billion, four hundred forty-eight million, two hundred fifteen thousand, one hundred ninety-six".