20269735983460 has 12 divisors (see below), whose sum is σ = 42566445565308. Its totient is φ = 8107894393376.

The previous prime is 20269735983373. The next prime is 20269735983463. The reversal of 20269735983460 is 6438953796202.

It can be written as a sum of positive squares in 2 ways, for example, as 4533424505856 + 15736311477604 = 2129184^2 + 3966902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20269735983392 and 20269735983401.

It is not an unprimeable number, because it can be changed into a prime (20269735983463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506743399567 + ... + 506743399606.

It is an arithmetic number, because the mean of its divisors is an integer number (3547203797109).

Almost surely, 2^{20269735983460} is an apocalyptic number.

20269735983460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20269735983460 is an abundant number, since it is smaller than the sum of its proper divisors (22296709581848).

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

20269735983460 is a wasteful number, since it uses less digits than its factorization.

20269735983460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013486799182 (or 1013486799180 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 20269735983460 in words is "twenty trillion, two hundred sixty-nine billion, seven hundred thirty-five million, nine hundred eighty-three thousand, four hundred sixty".