36866442722 has 18 divisors (see below), whose sum is σ = 57818328267. Its totient is φ = 17628790036.

The previous prime is 36866442713. The next prime is 36866442761. The reversal of 36866442722 is 22724466863.

It can be written as a sum of positive squares in only one way, i.e., 18433221361 + 18433221361 = 135769^2 + 135769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=135769.

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, 6242423 + ... + 6248325.

Almost surely, 2^36866442722 is an apocalyptic number.

36866442722 is a deficient number, since it is larger than the sum of its proper divisors (20951885545).

36866442722 is an frugal number, since it uses more digits than its factorization.

36866442722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854 (or 5928 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 50.

Multiplying 36866442722 by its sum of digits (50), we get a square (1843322136100 = 1357690²).

The spelling of 36866442722 in words is "thirty-six billion, eight hundred sixty-six million, four hundred forty-two thousand, seven hundred twenty-two".