89974734686909 has 4 divisors (see below), whose sum is σ = 90526726924416. Its totient is φ = 89422742449404.

The previous prime is 89974734686887. The next prime is 89974734686927. The reversal of 89974734686909 is 90968643747998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89974734686909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89974734686939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275996118509 + ... + 275996118834.

It is an arithmetic number, because the mean of its divisors is an integer number (22631681731104).

Almost surely, 2^{89974734686909} is an apocalyptic number.

It is an amenable number.

89974734686909 is a deficient number, since it is larger than the sum of its proper divisors (551992237507).

89974734686909 is a wasteful number, since it uses less digits than its factorization.

89974734686909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551992237506.

The product of its (nonzero) digits is 35554111488, while the sum is 89.

The spelling of 89974734686909 in words is "eighty-nine trillion, nine hundred seventy-four billion, seven hundred thirty-four million, six hundred eighty-six thousand, nine hundred nine".