20285488043 has 8 divisors (see below), whose sum is σ = 21171462048. Its totient is φ = 19399847104.

The previous prime is 20285488033. The next prime is 20285488133. The reversal of 20285488043 is 34088458202.

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

It is a cyclic number.

It is not a de Polignac number, because 20285488043 - 2⁸ = 20285487787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20285487985 and 20285488003.

It is not an unprimeable number, because it can be changed into a prime (20285488033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45455 + ... + 206487.

It is an arithmetic number, because the mean of its divisors is an integer number (2646432756).

Almost surely, 2^20285488043 is an apocalyptic number.

20285488043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20285488043 is a deficient number, since it is larger than the sum of its proper divisors (885974005).

20285488043 is a wasteful number, since it uses less digits than its factorization.

20285488043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166533.

The product of its (nonzero) digits is 491520, while the sum is 44.

The spelling of 20285488043 in words is "twenty billion, two hundred eighty-five million, four hundred eighty-eight thousand, forty-three".