21092535434 has 8 divisors (see below), whose sum is σ = 33014403360. Its totient is φ = 10087734316.

The previous prime is 21092535433. The next prime is 21092535463. The reversal of 21092535434 is 43453529012.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (21092535433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229266644 + ... + 229266735.

It is an arithmetic number, because the mean of its divisors is an integer number (4126800420).

Almost surely, 2^21092535434 is an apocalyptic number.

21092535434 is a deficient number, since it is larger than the sum of its proper divisors (11921867926).

21092535434 is a wasteful number, since it uses less digits than its factorization.

21092535434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458533404.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 21092535434 in words is "twenty-one billion, ninety-two million, five hundred thirty-five thousand, four hundred thirty-four".