20741420740 has 24 divisors (see below), whose sum is σ = 43824211200. Its totient is φ = 8245667808.

The previous prime is 20741420611. The next prime is 20741420747. The reversal of 20741420740 is 4702414702.

It is not an unprimeable number, because it can be changed into a prime (20741420747) 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, 3177940 + ... + 3184459.

It is an arithmetic number, because the mean of its divisors is an integer number (1826008800).

Almost surely, 2^20741420740 is an apocalyptic number.

20741420740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20741420740 is an abundant number, since it is smaller than the sum of its proper divisors (23082790460).

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

20741420740 is a wasteful number, since it uses less digits than its factorization.

20741420740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362571 (or 6362569 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The spelling of 20741420740 in words is "twenty billion, seven hundred forty-one million, four hundred twenty thousand, seven hundred forty".