89187505923 has 16 divisors (see below), whose sum is σ = 121552551936. Its totient is φ = 58142601600.

The previous prime is 89187505903. The next prime is 89187505987. The reversal of 89187505923 is 32950578198.

It is not a de Polignac number, because 89187505923 - 2¹⁰ = 89187504899 is a prime.

It is a super-2 number, since 2×89187505923² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89187505903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112486 + ... + 437067.

It is an arithmetic number, because the mean of its divisors is an integer number (7597034496).

Almost surely, 2^89187505923 is an apocalyptic number.

89187505923 is a deficient number, since it is larger than the sum of its proper divisors (32365046013).

89187505923 is a wasteful number, since it uses less digits than its factorization.

89187505923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550754.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 89187505923 in words is "eighty-nine billion, one hundred eighty-seven million, five hundred five thousand, nine hundred twenty-three".