2123917863 has 8 divisors (see below), whose sum is σ = 2929542000. Its totient is φ = 1367119488.

The previous prime is 2123917841. The next prime is 2123917879. The reversal of 2123917863 is 3687193212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123917863 - 2⁹ = 2123917351 is a prime.

It is a super-2 number, since 2×2123917863² = 9022054177540973538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123915863) by changing a digit.

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, 12206338 + ... + 12206511.

It is an arithmetic number, because the mean of its divisors is an integer number (366192750).

Almost surely, 2^2123917863 is an apocalyptic number.

2123917863 is a deficient number, since it is larger than the sum of its proper divisors (805624137).

2123917863 is a wasteful number, since it uses less digits than its factorization.

2123917863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24412881.

The product of its digits is 108864, while the sum is 42.

The square root of 2123917863 is about 46085.9833680480. The cubic root of 2123917863 is about 1285.4225246313.

The spelling of 2123917863 in words is "two billion, one hundred twenty-three million, nine hundred seventeen thousand, eight hundred sixty-three".