18888698134 has 16 divisors (see below), whose sum is σ = 28832760000. Its totient is φ = 9277994824.

The previous prime is 18888698131. The next prime is 18888698137. The reversal of 18888698134 is 43189688881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18888698131) and next prime (18888698137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18888698131) 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, 123489 + ... + 230275.

It is an arithmetic number, because the mean of its divisors is an integer number (1802047500).

Almost surely, 2^18888698134 is an apocalyptic number.

18888698134 is a deficient number, since it is larger than the sum of its proper divisors (9944061866).

18888698134 is a wasteful number, since it uses less digits than its factorization.

18888698134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108347.

The product of its digits is 21233664, while the sum is 64.

The spelling of 18888698134 in words is "eighteen billion, eight hundred eighty-eight million, six hundred ninety-eight thousand, one hundred thirty-four".