21296689468 has 24 divisors (see below), whose sum is σ = 37409902992. Its totient is φ = 10608182784.

The previous prime is 21296689451. The next prime is 21296689493. The reversal of 21296689468 is 86498669212.

It is a super-3 number, since 3×21296689468³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 3480780 + ... + 3486892.

It is an arithmetic number, because the mean of its divisors is an integer number (1558745958).

Almost surely, 2^21296689468 is an apocalyptic number.

It is an amenable number.

21296689468 is a deficient number, since it is larger than the sum of its proper divisors (16113213524).

21296689468 is a wasteful number, since it uses less digits than its factorization.

21296689468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9261 (or 9259 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 61.

The spelling of 21296689468 in words is "twenty-one billion, two hundred ninety-six million, six hundred eighty-nine thousand, four hundred sixty-eight".