20427269776 has 15 divisors (see below), whose sum is σ = 39578942883. Its totient is φ = 10213349040.

The previous prime is 20427269761. The next prime is 20427269789. The reversal of 20427269776 is 67796272402.

The square root of 20427269776 is 142924.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 553831 + ... + 589561.

Almost surely, 2^20427269776 is an apocalyptic number.

20427269776 is the 142924-th square number.

It is an amenable number.

20427269776 is a deficient number, since it is larger than the sum of its proper divisors (19151673107).

20427269776 is an frugal number, since it uses more digits than its factorization.

20427269776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71470 (or 35733 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

It can be divided in two parts, 2042726 and 9776, that added together give a palindrome (2052502).

The spelling of 20427269776 in words is "twenty billion, four hundred twenty-seven million, two hundred sixty-nine thousand, seven hundred seventy-six".