20467725420 has 24 divisors (see below), whose sum is σ = 57309631344. Its totient is φ = 5458060096.

The previous prime is 20467725419. The next prime is 20467725451. The reversal of 20467725420 is 2452776402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170564319 + ... + 170564438.

It is an arithmetic number, because the mean of its divisors is an integer number (2387901306).

Almost surely, 2^20467725420 is an apocalyptic number.

20467725420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20467725420 is an abundant number, since it is smaller than the sum of its proper divisors (36841905924).

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

20467725420 is a wasteful number, since it uses less digits than its factorization.

20467725420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341128769 (or 341128767 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 20467725420 in words is "twenty billion, four hundred sixty-seven million, seven hundred twenty-five thousand, four hundred twenty".