145173783579 has 8 divisors (see below), whose sum is σ = 211161867072. Its totient is φ = 87984111240.

The previous prime is 145173783571. The next prime is 145173783653. The reversal of 145173783579 is 975387371541.

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

It is not a de Polignac number, because 145173783579 - 2³ = 145173783571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145173783571) 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, 2199602749 + ... + 2199602814.

It is an arithmetic number, because the mean of its divisors is an integer number (26395233384).

Almost surely, 2^145173783579 is an apocalyptic number.

145173783579 is a deficient number, since it is larger than the sum of its proper divisors (65988083493).

145173783579 is a wasteful number, since it uses less digits than its factorization.

145173783579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399205577.

The product of its digits is 22226400, while the sum is 60.

The spelling of 145173783579 in words is "one hundred forty-five billion, one hundred seventy-three million, seven hundred eighty-three thousand, five hundred seventy-nine".