368172047461 has 2 divisors, whose sum is σ = 368172047462. Its totient is φ = 368172047460.

The previous prime is 368172047459. The next prime is 368172047647. The reversal of 368172047461 is 164740271863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295484652225 + 72687395236 = 543585^2 + 269606^2 .

It is a cyclic number.

It is not a de Polignac number, because 368172047461 - 2¹ = 368172047459 is a prime.

Together with 368172047459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368172047861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184086023730 + 184086023731.

It is an arithmetic number, because the mean of its divisors is an integer number (184086023731).

Almost surely, 2^368172047461 is an apocalyptic number.

It is an amenable number.

368172047461 is a deficient number, since it is larger than the sum of its proper divisors (1).

368172047461 is an equidigital number, since it uses as much as digits as its factorization.

368172047461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 368172047461 in words is "three hundred sixty-eight billion, one hundred seventy-two million, forty-seven thousand, four hundred sixty-one".