21296176972899 has 8 divisors (see below), whose sum is σ = 28646184955152. Its totient is φ = 14071810152960.

The previous prime is 21296176972877. The next prime is 21296176972949. The reversal of 21296176972899 is 99827967169212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21296176972899 - 2⁵ = 21296176972867 is a prime.

It is a super-2 number, since 2×21296176972899² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21296176972999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31410290182 + ... + 31410290859.

It is an arithmetic number, because the mean of its divisors is an integer number (3580773119394).

Almost surely, 2^{21296176972899} is an apocalyptic number.

21296176972899 is a deficient number, since it is larger than the sum of its proper divisors (7350007982253).

21296176972899 is a wasteful number, since it uses less digits than its factorization.

21296176972899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62820581157.

The product of its digits is 740710656, while the sum is 78.

The spelling of 21296176972899 in words is "twenty-one trillion, two hundred ninety-six billion, one hundred seventy-six million, nine hundred seventy-two thousand, eight hundred ninety-nine".