1864018768 has 10 divisors (see below), whose sum is σ = 3611536394. Its totient is φ = 932009376.

The previous prime is 1864018753. The next prime is 1864018777. The reversal of 1864018768 is 8678104681.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1518505024 + 345513744 = 38968^2 + 18588^2 .

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, 58250571 + ... + 58250602.

Almost surely, 2^1864018768 is an apocalyptic number.

It is an amenable number.

1864018768 is a deficient number, since it is larger than the sum of its proper divisors (1747517626).

1864018768 is a wasteful number, since it uses less digits than its factorization.

1864018768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116501181 (or 116501175 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 1864018768 is about 43174.2836420015. The cubic root of 1864018768 is about 1230.6940291888.

The spelling of 1864018768 in words is "one billion, eight hundred sixty-four million, eighteen thousand, seven hundred sixty-eight".