177939485145 has 12 divisors (see below), whose sum is σ = 308428440996. Its totient is φ = 94901058720.

The previous prime is 177939485039. The next prime is 177939485147. The reversal of 177939485145 is 541584939771.

177939485145 is a `hidden beast` number, since 1 + 7 + 7 + 9 + 3 + 9 + 485 + 145 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27838255104 + 150101230041 = 166848^2 + 387429^2 .

It is not a de Polignac number, because 177939485145 - 2¹⁵ = 177939452377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (177939485147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977105346 + ... + 1977105435.

It is an arithmetic number, because the mean of its divisors is an integer number (25702370083).

Almost surely, 2^177939485145 is an apocalyptic number.

177939485145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

177939485145 is a deficient number, since it is larger than the sum of its proper divisors (130488955851).

177939485145 is a wasteful number, since it uses less digits than its factorization.

177939485145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954210792 (or 3954210789 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 177939485145 in words is "one hundred seventy-seven billion, nine hundred thirty-nine million, four hundred eighty-five thousand, one hundred forty-five".