145497777578 has 8 divisors (see below), whose sum is σ = 223322170368. Its totient is φ = 71057054124.

The previous prime is 145497777571. The next prime is 145497777619. The reversal of 145497777578 is 875777794541.

145497777578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (145497777571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845917226 + ... + 845917397.

It is an arithmetic number, because the mean of its divisors is an integer number (27915271296).

Almost surely, 2^145497777578 is an apocalyptic number.

145497777578 is a deficient number, since it is larger than the sum of its proper divisors (77824392790).

145497777578 is a wasteful number, since it uses less digits than its factorization.

145497777578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691834668.

The product of its digits is 484041600, while the sum is 71.

The spelling of 145497777578 in words is "one hundred forty-five billion, four hundred ninety-seven million, seven hundred seventy-seven thousand, five hundred seventy-eight".