190618546568 has 36 divisors (see below), whose sum is σ = 359996068215. Its totient is φ = 94624527888.

The previous prime is 190618546567. The next prime is 190618546583. The reversal of 190618546568 is 865645816091.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 95309273284 + 95309273284 = 308722^2 + 308722^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=308722.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190618546567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 201286271 + ... + 201287217.

Almost surely, 2^190618546568 is an apocalyptic number.

It is an amenable number.

190618546568 is a deficient number, since it is larger than the sum of its proper divisors (169377521647).

190618546568 is an frugal number, since it uses more digits than its factorization.

190618546568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 59.

The spelling of 190618546568 in words is "one hundred ninety billion, six hundred eighteen million, five hundred forty-six thousand, five hundred sixty-eight".