89974734686929 has 4 divisors (see below), whose sum is σ = 89974929223476. Its totient is φ = 89974540150384.

The previous prime is 89974734686927. The next prime is 89974734686939. The reversal of 89974734686929 is 92968643747998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62631791700625 + 27342942986304 = 7914025^2 + 5229048^2 .

It is a cyclic number.

It is not a de Polignac number, because 89974734686929 - 2¹ = 89974734686927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89974734686927) 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, 96572854 + ... + 97500079.

It is an arithmetic number, because the mean of its divisors is an integer number (22493732305869).

Almost surely, 2^{89974734686929} is an apocalyptic number.

It is an amenable number.

89974734686929 is a deficient number, since it is larger than the sum of its proper divisors (194536547).

89974734686929 is a wasteful number, since it uses less digits than its factorization.

89974734686929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194536546.

The product of its digits is 71108222976, while the sum is 91.

The spelling of 89974734686929 in words is "eighty-nine trillion, nine hundred seventy-four billion, seven hundred thirty-four million, six hundred eighty-six thousand, nine hundred twenty-nine".