147919979065 has 4 divisors (see below), whose sum is σ = 177503974884. Its totient is φ = 118335983248.

The previous prime is 147919979033. The next prime is 147919979087. The reversal of 147919979065 is 560979919741.

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 67421238336 + 80498740729 = 259656^2 + 283723^2 .

It is a cyclic number.

It is not a de Polignac number, because 147919979065 - 2⁵ = 147919979033 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14791997902 + ... + 14791997911.

It is an arithmetic number, because the mean of its divisors is an integer number (44375993721).

Almost surely, 2^147919979065 is an apocalyptic number.

It is an amenable number.

147919979065 is a deficient number, since it is larger than the sum of its proper divisors (29583995819).

147919979065 is an equidigital number, since it uses as much as digits as its factorization.

147919979065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29583995818.

The product of its (nonzero) digits is 38578680, while the sum is 67.

The spelling of 147919979065 in words is "one hundred forty-seven billion, nine hundred nineteen million, nine hundred seventy-nine thousand, sixty-five".