21352395316 has 48 divisors (see below), whose sum is σ = 42909761664. Its totient is φ = 9107214336.

The previous prime is 21352395307. The next prime is 21352395341. The reversal of 21352395316 is 61359325312.

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, 5859391 + ... + 5863033.

It is an arithmetic number, because the mean of its divisors is an integer number (893953368).

Almost surely, 2^21352395316 is an apocalyptic number.

It is an amenable number.

21352395316 is an abundant number, since it is smaller than the sum of its proper divisors (21557366348).

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

21352395316 is a wasteful number, since it uses less digits than its factorization.

21352395316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600 (or 4598 counting only the distinct ones).

The product of its digits is 145800, while the sum is 40.

The spelling of 21352395316 in words is "twenty-one billion, three hundred fifty-two million, three hundred ninety-five thousand, three hundred sixteen".