20411474624836 has 9 divisors (see below), whose sum is σ = 35720096406141. Its totient is φ = 10205732794512.

The previous prime is 20411474624797. The next prime is 20411474624873. The reversal of 20411474624836 is 63842647411402.

The square root of 20411474624836 is 4517906.

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

It can be written as a sum of positive squares in only one way, i.e., 2262647724100 + 18148826900736 = 1504210^2 + 4260144^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 7906336 + ... + 10165288.

Almost surely, 2^{20411474624836} is an apocalyptic number.

20411474624836 is the 4517906-th square number.

It is an amenable number.

20411474624836 is a deficient number, since it is larger than the sum of its proper divisors (15308621781305).

20411474624836 is an frugal number, since it uses more digits than its factorization.

20411474624836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517910 (or 2258955 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 20411474624836 in words is "twenty trillion, four hundred eleven billion, four hundred seventy-four million, six hundred twenty-four thousand, eight hundred thirty-six".