3550985972836 has 27 divisors (see below), whose sum is σ = 6248197617753. Its totient is φ = 1765839174480.

The previous prime is 3550985972803. The next prime is 3550985972899. The reversal of 3550985972836 is 6382795890553.

The square root of 3550985972836 is 1884406.

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

3550985972836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1107566808100 + 2443419164736 = 1052410^2 + 1563144^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 719840626 + ... + 719845558.

Almost surely, 2^{3550985972836} is an apocalyptic number.

3550985972836 is the 1884406-th square number.

It is an amenable number.

3550985972836 is a deficient number, since it is larger than the sum of its proper divisors (2697211644917).

3550985972836 is an frugal number, since it uses more digits than its factorization.

3550985972836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10252 (or 5126 counting only the distinct ones).

The product of its (nonzero) digits is 489888000, while the sum is 70.

The spelling of 3550985972836 in words is "three trillion, five hundred fifty billion, nine hundred eighty-five million, nine hundred seventy-two thousand, eight hundred thirty-six".