3618617768 has 8 divisors (see below), whose sum is σ = 6784908330. Its totient is φ = 1809308880.

The previous prime is 3618617759. The next prime is 3618617777. The reversal of 3618617768 is 8677168163.

It is an interprime number because it is at equal distance from previous prime (3618617759) and next prime (3618617777).

It can be written as a sum of positive squares in only one way, i.e., 1997911204 + 1620706564 = 44698^2 + 40258^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226163603 + ... + 226163618.

Almost surely, 2^3618617768 is an apocalyptic number.

It is an amenable number.

3618617768 is a deficient number, since it is larger than the sum of its proper divisors (3166290562).

3618617768 is a wasteful number, since it uses less digits than its factorization.

3618617768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452327227 (or 452327223 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 3618617768 is about 60154.9479926631. The cubic root of 3618617768 is about 1535.2563550244.

The spelling of 3618617768 in words is "three billion, six hundred eighteen million, six hundred seventeen thousand, seven hundred sixty-eight".