21436713026 has 16 divisors (see below), whose sum is σ = 33850820160. Its totient is φ = 10153218960.

The previous prime is 21436712953. The next prime is 21436713031. The reversal of 21436713026 is 62031763412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473771 + ... + 517041.

It is an arithmetic number, because the mean of its divisors is an integer number (2115676260).

Almost surely, 2^21436713026 is an apocalyptic number.

21436713026 is a deficient number, since it is larger than the sum of its proper divisors (12414107134).

21436713026 is a wasteful number, since it uses less digits than its factorization.

21436713026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56329.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 21436713026 in words is "twenty-one billion, four hundred thirty-six million, seven hundred thirteen thousand, twenty-six".