2151760868 has 24 divisors (see below), whose sum is σ = 3983918400. Its totient is φ = 1014074208.

The previous prime is 2151760817. The next prime is 2151760903. The reversal of 2151760868 is 8680671512.

It is a happy number.

It is a super-3 number, since 3×2151760868³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56888 + ... + 86831.

It is an arithmetic number, because the mean of its divisors is an integer number (165996600).

Almost surely, 2^2151760868 is an apocalyptic number.

It is an amenable number.

2151760868 is a deficient number, since it is larger than the sum of its proper divisors (1832157532).

2151760868 is a wasteful number, since it uses less digits than its factorization.

2151760868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143939 (or 143937 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 2151760868 is about 46387.0765192203. The cubic root of 2151760868 is about 1291.0151390923.

The spelling of 2151760868 in words is "two billion, one hundred fifty-one million, seven hundred sixty thousand, eight hundred sixty-eight".