20452859942 has 8 divisors (see below), whose sum is σ = 30686455800. Its totient is φ = 10224041344.

The previous prime is 20452859897. The next prime is 20452860031. The reversal of 20452859942 is 24995825402.

It is a happy number.

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

It is a congruent number.

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, 1183592 + ... + 1200747.

It is an arithmetic number, because the mean of its divisors is an integer number (3835806975).

Almost surely, 2^20452859942 is an apocalyptic number.

20452859942 is a deficient number, since it is larger than the sum of its proper divisors (10233595858).

20452859942 is a wasteful number, since it uses less digits than its factorization.

20452859942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388630.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 20452859942 in words is "twenty billion, four hundred fifty-two million, eight hundred fifty-nine thousand, nine hundred forty-two".