611172278473 has 2 divisors, whose sum is σ = 611172278474. Its totient is φ = 611172278472.

The previous prime is 611172278467. The next prime is 611172278491. The reversal of 611172278473 is 374872271116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463172802624 + 147999475849 = 680568^2 + 384707^2 .

It is a cyclic number.

It is not a de Polignac number, because 611172278473 - 2¹³ = 611172270281 is a prime.

It is not a weakly prime, because it can be changed into another prime (611172278173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305586139236 + 305586139237.

It is an arithmetic number, because the mean of its divisors is an integer number (305586139237).

Almost surely, 2^611172278473 is an apocalyptic number.

It is an amenable number.

611172278473 is a deficient number, since it is larger than the sum of its proper divisors (1).

611172278473 is an equidigital number, since it uses as much as digits as its factorization.

611172278473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 49.

The spelling of 611172278473 in words is "six hundred eleven billion, one hundred seventy-two million, two hundred seventy-eight thousand, four hundred seventy-three".