21602426300399 has 32 divisors (see below), whose sum is σ = 26226459956736. Its totient is φ = 17370037601280.

The previous prime is 21602426300303. The next prime is 21602426300407. The reversal of 21602426300399 is 99300362420612.

It is a de Polignac number, because none of the positive numbers 2^k-21602426300399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21602426302399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 800461784 + ... + 800488770.

It is an arithmetic number, because the mean of its divisors is an integer number (819576873648).

Almost surely, 2^{21602426300399} is an apocalyptic number.

21602426300399 is a deficient number, since it is larger than the sum of its proper divisors (4624033656337).

21602426300399 is a wasteful number, since it uses less digits than its factorization.

21602426300399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48815.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 21602426300399 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-six million, three hundred thousand, three hundred ninety-nine".