3121077668 has 12 divisors (see below), whose sum is σ = 5783173452. Its totient is φ = 1468742400.

The previous prime is 3121077653. The next prime is 3121077671. The reversal of 3121077668 is 8667701213.

It can be written as a sum of positive squares in 2 ways, for example, as 834516544 + 2286561124 = 28888^2 + 47818^2 .

It is a super-2 number, since 2×3121077668² = 19482251619376636448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22949033 + ... + 22949168.

It is an arithmetic number, because the mean of its divisors is an integer number (481931121).

Almost surely, 2^3121077668 is an apocalyptic number.

It is an amenable number.

3121077668 is a deficient number, since it is larger than the sum of its proper divisors (2662095784).

3121077668 is a wasteful number, since it uses less digits than its factorization.

3121077668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45898222 (or 45898220 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 3121077668 is about 55866.6060182646. The cubic root of 3121077668 is about 1461.3969347010.

The spelling of 3121077668 in words is "three billion, one hundred twenty-one million, seventy-seven thousand, six hundred sixty-eight".