145197789338499 has 8 divisors (see below), whose sum is σ = 193602787605840. Its totient is φ = 96795658648416.

The previous prime is 145197789338359. The next prime is 145197789338521. The reversal of 145197789338499 is 994833987791541.

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

It is not a de Polignac number, because 145197789338499 - 2⁸ = 145197789338243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145197789338099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716776164 + ... + 716978705.

It is an arithmetic number, because the mean of its divisors is an integer number (24200348450730).

Almost surely, 2^{145197789338499} is an apocalyptic number.

145197789338499 is a deficient number, since it is larger than the sum of its proper divisors (48404998267341).

145197789338499 is a wasteful number, since it uses less digits than its factorization.

145197789338499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433788629.

The product of its digits is 14814213120, while the sum is 87.

The spelling of 145197789338499 in words is "one hundred forty-five trillion, one hundred ninety-seven billion, seven hundred eighty-nine million, three hundred thirty-eight thousand, four hundred ninety-nine".