551376468361 has 2 divisors, whose sum is σ = 551376468362. Its totient is φ = 551376468360.

The previous prime is 551376468347. The next prime is 551376468397. The reversal of 551376468361 is 163864673155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525942597961 + 25433870400 = 725219^2 + 159480^2 .

It is a cyclic number.

It is not a de Polignac number, because 551376468361 - 2¹⁵ = 551376435593 is a prime.

It is not a weakly prime, because it can be changed into another prime (551376468311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275688234180 + 275688234181.

It is an arithmetic number, because the mean of its divisors is an integer number (275688234181).

Almost surely, 2^551376468361 is an apocalyptic number.

It is an amenable number.

551376468361 is a deficient number, since it is larger than the sum of its proper divisors (1).

551376468361 is an equidigital number, since it uses as much as digits as its factorization.

551376468361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The spelling of 551376468361 in words is "five hundred fifty-one billion, three hundred seventy-six million, four hundred sixty-eight thousand, three hundred sixty-one".