21363545671404 has 24 divisors (see below), whose sum is σ = 49872436293120. Its totient is φ = 7117730024784.

The previous prime is 21363545671379. The next prime is 21363545671417. The reversal of 21363545671404 is 40417654536312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431457424 + ... + 431506935.

It is an arithmetic number, because the mean of its divisors is an integer number (2078018178880).

Almost surely, 2^{21363545671404} is an apocalyptic number.

It is an amenable number.

21363545671404 is an abundant number, since it is smaller than the sum of its proper divisors (28508890621716).

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

21363545671404 is a wasteful number, since it uses less digits than its factorization.

21363545671404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862966429 (or 862966427 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 21363545671404 in words is "twenty-one trillion, three hundred sixty-three billion, five hundred forty-five million, six hundred seventy-one thousand, four hundred four".