21297119146 has 8 divisors (see below), whose sum is σ = 33334621344. Its totient is φ = 10185578700.

The previous prime is 21297119143. The next prime is 21297119177. The reversal of 21297119146 is 64191179212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21297119143) 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, 231490380 + ... + 231490471.

It is an arithmetic number, because the mean of its divisors is an integer number (4166827668).

Almost surely, 2^21297119146 is an apocalyptic number.

21297119146 is a deficient number, since it is larger than the sum of its proper divisors (12037502198).

21297119146 is a wasteful number, since it uses less digits than its factorization.

21297119146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462980876.

The product of its digits is 54432, while the sum is 43.

The spelling of 21297119146 in words is "twenty-one billion, two hundred ninety-seven million, one hundred nineteen thousand, one hundred forty-six".