4121978764 has 24 divisors (see below), whose sum is σ = 7538227200. Its totient is φ = 1968464784.

The previous prime is 4121978743. The next prime is 4121978801. The reversal of 4121978764 is 4678791214.

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 7 ways as a sum of consecutive naturals, for example, 30037 + ... + 95635.

It is an arithmetic number, because the mean of its divisors is an integer number (314092800).

Almost surely, 2^4121978764 is an apocalyptic number.

It is an amenable number.

4121978764 is a deficient number, since it is larger than the sum of its proper divisors (3416248436).

4121978764 is a wasteful number, since it uses less digits than its factorization.

4121978764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66309 (or 66307 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 4121978764 is about 64202.6382946994. The cubic root of 4121978764 is about 1603.3755251980.

The spelling of 4121978764 in words is "four billion, one hundred twenty-one million, nine hundred seventy-eight thousand, seven hundred sixty-four".