21435093674 has 8 divisors (see below), whose sum is σ = 32153316768. Its totient is φ = 10717321420.

The previous prime is 21435093649. The next prime is 21435093677. The reversal of 21435093674 is 47639053412.

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 (21435093677) 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, 57659 + ... + 214929.

It is an arithmetic number, because the mean of its divisors is an integer number (4019164596).

Almost surely, 2^21435093674 is an apocalyptic number.

21435093674 is a deficient number, since it is larger than the sum of its proper divisors (10718223094).

21435093674 is a wasteful number, since it uses less digits than its factorization.

21435093674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225420.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 21435093674 in words is "twenty-one billion, four hundred thirty-five million, ninety-three thousand, six hundred seventy-four".