190272744617 has 2 divisors, whose sum is σ = 190272744618. Its totient is φ = 190272744616.

The previous prime is 190272744577. The next prime is 190272744631. The reversal of 190272744617 is 716447272091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181364405161 + 8908339456 = 425869^2 + 94384^2 .

It is a cyclic number.

It is not a de Polignac number, because 190272744617 - 2⁶ = 190272744553 is a prime.

It is a super-2 number, since 2×190272744617² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190272744317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95136372308 + 95136372309.

It is an arithmetic number, because the mean of its divisors is an integer number (95136372309).

Almost surely, 2^190272744617 is an apocalyptic number.

It is an amenable number.

190272744617 is a deficient number, since it is larger than the sum of its proper divisors (1).

190272744617 is an equidigital number, since it uses as much as digits as its factorization.

190272744617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 190272744617 in words is "one hundred ninety billion, two hundred seventy-two million, seven hundred forty-four thousand, six hundred seventeen".