18876242468 has 24 divisors (see below), whose sum is σ = 35369573400. Its totient is φ = 8783126528.

The previous prime is 18876242447. The next prime is 18876242479. The reversal of 18876242468 is 86424267881.

It can be written as a sum of positive squares in 4 ways, for example, as 6240684004 + 12635558464 = 78998^2 + 112408^2 .

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, 1553453 + ... + 1565556.

It is an arithmetic number, because the mean of its divisors is an integer number (1473732225).

Almost surely, 2^18876242468 is an apocalyptic number.

It is an amenable number.

18876242468 is a deficient number, since it is larger than the sum of its proper divisors (16493330932).

18876242468 is a wasteful number, since it uses less digits than its factorization.

18876242468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119119 (or 3119117 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 56.

The spelling of 18876242468 in words is "eighteen billion, eight hundred seventy-six million, two hundred forty-two thousand, four hundred sixty-eight".