21410505434 has 8 divisors (see below), whose sum is σ = 32124295008. Its totient is φ = 10702407100.

The previous prime is 21410505419. The next prime is 21410505533. The reversal of 21410505434 is 43450501412.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 21410505397 and 21410505406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413392 + ... + 1428459.

It is an arithmetic number, because the mean of its divisors is an integer number (4015536876).

Almost surely, 2^21410505434 is an apocalyptic number.

21410505434 is a deficient number, since it is larger than the sum of its proper divisors (10713789574).

21410505434 is a wasteful number, since it uses less digits than its factorization.

21410505434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845620.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 21410505434 in words is "twenty-one billion, four hundred ten million, five hundred five thousand, four hundred thirty-four".