145911411779 has 8 divisors (see below), whose sum is σ = 166833730560. Its totient is φ = 125008550856.

The previous prime is 145911411769. The next prime is 145911411851. The reversal of 145911411779 is 977114119541.

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

It is a de Polignac number, because none of the positive numbers 2^k-145911411779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145911411769) 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, 4848389 + ... + 4878390.

It is an arithmetic number, because the mean of its divisors is an integer number (20854216320).

Almost surely, 2^145911411779 is an apocalyptic number.

145911411779 is a deficient number, since it is larger than the sum of its proper divisors (20922318781).

145911411779 is an equidigital number, since it uses as much as digits as its factorization.

145911411779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9728929.

The product of its digits is 317520, while the sum is 50.

The spelling of 145911411779 in words is "one hundred forty-five billion, nine hundred eleven million, four hundred eleven thousand, seven hundred seventy-nine".