1061908772 has 12 divisors (see below), whose sum is σ = 1858573836. Its totient is φ = 530887680.

The previous prime is 1061908763. The next prime is 1061908811. The reversal of 1061908772 is 2778091601.

It can be written as a sum of positive squares in 2 ways, for example, as 334743616 + 727165156 = 18296^2 + 26966^2 .

It is a super-5 number, since 5×1061908772⁵ (a number of 46 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42368 + ... + 62600.

It is an arithmetic number, because the mean of its divisors is an integer number (154881153).

Almost surely, 2^1061908772 is an apocalyptic number.

It is an amenable number.

1061908772 is a deficient number, since it is larger than the sum of its proper divisors (796665064).

1061908772 is a wasteful number, since it uses less digits than its factorization.

1061908772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33358 (or 33356 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 1061908772 is about 32586.9417405193. The cubic root of 1061908772 is about 1020.2244706537.

The spelling of 1061908772 in words is "one billion, sixty-one million, nine hundred eight thousand, seven hundred seventy-two".