21474425774 has 8 divisors (see below), whose sum is σ = 32416808808. Its totient is φ = 10668822840.

The previous prime is 21474425773. The next prime is 21474425779. The reversal of 21474425774 is 47752447412.

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

It is a super-3 number, since 3×21474425774³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21474425773) 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, 34194632 + ... + 34195259.

It is an arithmetic number, because the mean of its divisors is an integer number (4052101101).

Almost surely, 2^21474425774 is an apocalyptic number.

21474425774 is a deficient number, since it is larger than the sum of its proper divisors (10942383034).

21474425774 is a wasteful number, since it uses less digits than its factorization.

21474425774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68390050.

The product of its digits is 1756160, while the sum is 47.

The spelling of 21474425774 in words is "twenty-one billion, four hundred seventy-four million, four hundred twenty-five thousand, seven hundred seventy-four".