20471062007840 has 48 divisors (see below), whose sum is σ = 48372333649920. Its totient is φ = 8186824861440.

The previous prime is 20471062007827. The next prime is 20471062007843. The reversal of 20471062007840 is 4870026017402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20471062007843) 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, 11677946 + ... + 13316025.

It is an arithmetic number, because the mean of its divisors is an integer number (1007756951040).

Almost surely, 2^{20471062007840} is an apocalyptic number.

20471062007840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20471062007840 is an abundant number, since it is smaller than the sum of its proper divisors (27901271642080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20471062007840 is a wasteful number, since it uses less digits than its factorization.

20471062007840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24999105 (or 24999097 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 20471062007840 in words is "twenty trillion, four hundred seventy-one billion, sixty-two million, seven thousand, eight hundred forty".