1912109684 has 6 divisors (see below), whose sum is σ = 3346191954. Its totient is φ = 956054840.

The previous prime is 1912109653. The next prime is 1912109711. The reversal of 1912109684 is 4869012191.

It can be written as a sum of positive squares in only one way, i.e., 1276061284 + 636048400 = 35722^2 + 25220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239013707 + ... + 239013714.

It is an arithmetic number, because the mean of its divisors is an integer number (557698659).

Almost surely, 2^1912109684 is an apocalyptic number.

It is an amenable number.

1912109684 is a deficient number, since it is larger than the sum of its proper divisors (1434082270).

1912109684 is a wasteful number, since it uses less digits than its factorization.

1912109684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478027425 (or 478027423 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1912109684 is about 43727.6764075111. The cubic root of 1912109684 is about 1241.1880921152.

The spelling of 1912109684 in words is "one billion, nine hundred twelve million, one hundred nine thousand, six hundred eighty-four".