1772989916 has 12 divisors (see below), whose sum is σ = 3105895632. Its totient is φ = 885591168.

The previous prime is 1772989879. The next prime is 1772989927. The reversal of 1772989916 is 6199892771.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221525 + ... + 229388.

It is an arithmetic number, because the mean of its divisors is an integer number (258824636).

Almost surely, 2^1772989916 is an apocalyptic number.

It is an amenable number.

1772989916 is a deficient number, since it is larger than the sum of its proper divisors (1332905716).

1772989916 is a wasteful number, since it uses less digits than its factorization.

1772989916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451900 (or 451898 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 59.

The square root of 1772989916 is about 42106.8868001423. The cubic root of 1772989916 is about 1210.3252355237.

The spelling of 1772989916 in words is "one billion, seven hundred seventy-two million, nine hundred eighty-nine thousand, nine hundred sixteen".