20344434254370 has 24 divisors (see below), whose sum is σ = 52895529061596. Its totient is φ = 5425182467808.

The previous prime is 20344434254327. The next prime is 20344434254449. The reversal of 20344434254370 is 7345243444302.

20344434254370 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 4 + 4 + 34 + 2 + 543 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19824551435529 + 519882818841 = 4452477^2 + 721029^2 .

It is a super-3 number, since 3×20344434254370³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113024634657 + ... + 113024634836.

Almost surely, 2^{20344434254370} is an apocalyptic number.

20344434254370 is an abundant number, since it is smaller than the sum of its proper divisors (32551094807226).

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

20344434254370 is a wasteful number, since it uses less digits than its factorization.

20344434254370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226049269506 (or 226049269503 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 45.

Adding to 20344434254370 its reverse (7345243444302), we get a palindrome (27689677698672).

The spelling of 20344434254370 in words is "twenty trillion, three hundred forty-four billion, four hundred thirty-four million, two hundred fifty-four thousand, three hundred seventy".