89849762578523 has 4 divisors (see below), whose sum is σ = 89875353514128. Its totient is φ = 89824171642920.

The previous prime is 89849762578421. The next prime is 89849762578529. The reversal of 89849762578523 is 32587526794898.

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

It is a cyclic number.

It is not a de Polignac number, because 89849762578523 - 2¹⁴ = 89849762562139 is a prime.

It is a super-4 number, since 4×89849762578523⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89849762578529) 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, 12795462536 + ... + 12795469557.

It is an arithmetic number, because the mean of its divisors is an integer number (22468838378532).

Almost surely, 2^{89849762578523} is an apocalyptic number.

89849762578523 is a deficient number, since it is larger than the sum of its proper divisors (25590935605).

89849762578523 is a wasteful number, since it uses less digits than its factorization.

89849762578523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25590935604.

The product of its digits is 14631321600, while the sum is 83.

The spelling of 89849762578523 in words is "eighty-nine trillion, eight hundred forty-nine billion, seven hundred sixty-two million, five hundred seventy-eight thousand, five hundred twenty-three".