89974734686918 has 8 divisors (see below), whose sum is σ = 135992347084440. Its totient is φ = 44643952325440.

The previous prime is 89974734686887. The next prime is 89974734686927. The reversal of 89974734686918 is 81968643747998.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171707508683 + ... + 171707509206.

It is an arithmetic number, because the mean of its divisors is an integer number (16999043385555).

Almost surely, 2^{89974734686918} is an apocalyptic number.

89974734686918 is a deficient number, since it is larger than the sum of its proper divisors (46017612397522).

89974734686918 is a wasteful number, since it uses less digits than its factorization.

89974734686918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343415018022.

The product of its digits is 31603654656, while the sum is 89.

The spelling of 89974734686918 in words is "eighty-nine trillion, nine hundred seventy-four billion, seven hundred thirty-four million, six hundred eighty-six thousand, nine hundred eighteen".