20279103539472 has 30 divisors (see below), whose sum is σ = 56753324489342. Its totient is φ = 6759701179776.

The previous prime is 20279103539419. The next prime is 20279103539473. The reversal of 20279103539472 is 27493530197202.

20279103539472 is a `hidden beast` number, since 2 + 0 + 27 + 9 + 10 + 3 + 539 + 4 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20146129541136 + 132973998336 = 4488444^2 + 364656^2 .

It is a super-2 number, since 2×20279103539472² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20279103539473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70413553813 + ... + 70413554100.

Almost surely, 2^{20279103539472} is an apocalyptic number.

It is an amenable number.

20279103539472 is an abundant number, since it is smaller than the sum of its proper divisors (36474220949870).

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

20279103539472 is a wasteful number, since it uses less digits than its factorization.

20279103539472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140827107927 (or 140827107918 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 20279103539472 in words is "twenty trillion, two hundred seventy-nine billion, one hundred three million, five hundred thirty-nine thousand, four hundred seventy-two".