21433619214265 has 16 divisors (see below), whose sum is σ = 25762140746496. Its totient is φ = 17119032436800.

The previous prime is 21433619214253. The next prime is 21433619214281. The reversal of 21433619214265 is 56241291633412.

It is not a de Polignac number, because 21433619214265 - 2²⁵ = 21433585659833 is a prime.

It is a Duffinian number.

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, 87122380 + ... + 87368050.

It is an arithmetic number, because the mean of its divisors is an integer number (1610133796656).

Almost surely, 2^{21433619214265} is an apocalyptic number.

It is an amenable number.

21433619214265 is a deficient number, since it is larger than the sum of its proper divisors (4328521532231).

21433619214265 is a wasteful number, since it uses less digits than its factorization.

21433619214265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273960.

The product of its digits is 1866240, while the sum is 49.

The spelling of 21433619214265 in words is "twenty-one trillion, four hundred thirty-three billion, six hundred nineteen million, two hundred fourteen thousand, two hundred sixty-five".