177894994097 has 4 divisors (see below), whose sum is σ = 177929562096. Its totient is φ = 177860426100.

The previous prime is 177894994073. The next prime is 177894994111. The reversal of 177894994097 is 790499498771.

177894994097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790499498771 = 457 ⋅1729758203.

It is a cyclic number.

It is not a de Polignac number, because 177894994097 - 2¹² = 177894990001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (177894094097) 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, 17276279 + ... + 17286572.

It is an arithmetic number, because the mean of its divisors is an integer number (44482390524).

Almost surely, 2^177894994097 is an apocalyptic number.

It is an amenable number.

177894994097 is a deficient number, since it is larger than the sum of its proper divisors (34567999).

177894994097 is an equidigital number, since it uses as much as digits as its factorization.

177894994097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34567998.

The product of its (nonzero) digits is 288054144, while the sum is 74.

The spelling of 177894994097 in words is "one hundred seventy-seven billion, eight hundred ninety-four million, nine hundred ninety-four thousand, ninety-seven".