21362354400402 has 32 divisors (see below), whose sum is σ = 47477682561600. Its totient is φ = 7119917216064.

The previous prime is 21362354400397. The next prime is 21362354400419. The reversal of 21362354400402 is 20400445326312.

21362354400402 is a `hidden beast` number, since 2 + 13 + 6 + 235 + 4 + 4 + 0 + 0 + 402 = 666.

It is a super-3 number, since 3×21362354400402³ (a number of 41 digits) contains 333 as substring.

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, 23652168 + ... + 24538739.

It is an arithmetic number, because the mean of its divisors is an integer number (1483677580050).

Almost surely, 2^{21362354400402} is an apocalyptic number.

21362354400402 is an abundant number, since it is smaller than the sum of its proper divisors (26115328161198).

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

21362354400402 is a wasteful number, since it uses less digits than its factorization.

21362354400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48199127 (or 48199121 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 21362354400402 its reverse (20400445326312), we get a palindrome (41762799726714).

The spelling of 21362354400402 in words is "twenty-one trillion, three hundred sixty-two billion, three hundred fifty-four million, four hundred thousand, four hundred two".