21362398896 has 80 divisors (see below), whose sum is σ = 60616477440. Its totient is φ = 6452709120.

The previous prime is 21362398867. The next prime is 21362398997. The reversal of 21362398896 is 69889326312.

It is a Harshad number since it is a multiple of its sum of digits (57).

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 15 ways as a sum of consecutive naturals, for example, 488235 + ... + 530186.

It is an arithmetic number, because the mean of its divisors is an integer number (757705968).

Almost surely, 2^21362398896 is an apocalyptic number.

It is an amenable number.

21362398896 is an abundant number, since it is smaller than the sum of its proper divisors (39254078544).

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

21362398896 is a wasteful number, since it uses less digits than its factorization.

21362398896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018474 (or 1018468 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The spelling of 21362398896 in words is "twenty-one billion, three hundred sixty-two million, three hundred ninety-eight thousand, eight hundred ninety-six".